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Proceedings of the National Academy of Sciences of the United States of Americaopen access

United States |Universities and research institutions |Media Ranking

Country

Universities and research institutions Media Ranking

Subject Area and Category

Publisher

National Academy of Sciences

SJR 2024

3.414 Q1

H-Index

896

Publication type

Journals

ISSN

00278424, 10916490

Coverage

1945-1951, 1961-2025

Information

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Scope

PNAS publishes research reports, Brief Reports, Letters, Front Matter magazine content, Commentaries, Perspectives, and Colloquium Papers. In accordance with the guiding principles established by George Ellery Hale in 1914, PNAS also publishes brief first announcements of NAS members' and foreign associates' more important contributions to research and of work that appears to a member to be of particular importance. All submissions are evaluated by a member of the Editorial Board prior to acceptance. PNAS is a general science journal, and all papers should be intelligible to a broad scientific audience.

Quartiles

The set of journals have been ranked according to their SJR and divided into four equal groups, four quartiles. Q1 (green) comprises the quarter of the journals with the highest values, Q2 (yellow) the second highest values, Q3 (orange) the third highest values and Q4 (red) the lowest values.

CategoryYearQuartile
Multidisciplinary1999Q1
Multidisciplinary2000Q1
Multidisciplinary2001Q1
Multidisciplinary2002Q1
Multidisciplinary2003Q1
Multidisciplinary2004Q1
Multidisciplinary2005Q1
Multidisciplinary2006Q1
Multidisciplinary2007Q1
Multidisciplinary2008Q1
Multidisciplinary2009Q1
Multidisciplinary2010Q1
Multidisciplinary2011Q1
Multidisciplinary2012Q1
Multidisciplinary2013Q1
Multidisciplinary2014Q1
Multidisciplinary2015Q1
Multidisciplinary2016Q1
Multidisciplinary2017Q1
Multidisciplinary2018Q1
Multidisciplinary2019Q1
Multidisciplinary2020Q1
Multidisciplinary2021Q1
Multidisciplinary2022Q1
Multidisciplinary2023Q1
Multidisciplinary2024Q1
SJR

The SJR is a size-independent prestige indicator that ranks journals by their 'average prestige per article'. It is based on the idea that 'all citations are not created equal'. SJR is a measure of scientific influence of journals that accounts for both the number of citations received by a journal and the importance or prestige of the journals where such citations come from It measures the scientific influence of the average article in a journal, it expresses how central to the global scientific discussion an average article of the journal is.

YearSJR
19998.520
20007.927
20017.189
20027.281
20037.129
20047.197
20056.940
20066.849
20076.867
20087.034
20097.025
20106.898
20116.864
20126.868
20137.073
20146.898
20156.814
20166.576
20176.092
20185.601
20195.165
20205.011
20214.184
20224.026
20233.737
20243.414
Total Documents

Evolution of the number of published documents. All types of documents are considered, including citable and non citable documents.

YearDocuments
19992760
20002640
20012741
20023033
20032845
20043221
20053325
20063371
20073603
20083718
20093964
20104057
20113914
20124135
20134330
20143990
20153726
20163663
20173789
20183691
20193816
20204229
20214094
20223767
20233558
20243766
External Cites per Doc 
Cites per Doc

Evolution of the number of total citation per document and external citation per document (i.e. journal self-citations removed) received by a journal's published documents during the three previous years. External citations are calculated by subtracting the number of self-citations from the total number of citations received by the journal’s documents.

CitesYearValue
External Cites per document19999.819
External Cites per document200010.274
External Cites per document200110.533
External Cites per document200210.589
External Cites per document200310.303
External Cites per document200410.634
External Cites per document200510.731
External Cites per document200610.519
External Cites per document200710.143
External Cites per document20089.799
External Cites per document20099.879
External Cites per document201010.023
External Cites per document201110.167
External Cites per document201210.414
External Cites per document201310.270
External Cites per document20149.873
External Cites per document20159.673
External Cites per document20169.361
External Cites per document20179.030
External Cites per document20188.821
External Cites per document20198.815
External Cites per document20209.552
External Cites per document202111.030
External Cites per document202210.249
External Cites per document20238.896
External Cites per document20248.471
Cites per document199910.190
Cites per document200010.650
Cites per document200110.936
Cites per document200210.990
Cites per document200310.678
Cites per document200411.015
Cites per document200511.101
Cites per document200610.852
Cites per document200710.474
Cites per document200810.113
Cites per document200910.189
Cites per document201010.313
Cites per document201110.439
Cites per document201210.701
Cites per document201310.564
Cites per document201410.136
Cites per document20159.908
Cites per document20169.585
Cites per document20179.250
Cites per document20189.032
Cites per document20199.018
Cites per document20209.768
Cites per document202111.231
Cites per document202210.427
Cites per document20239.068
Cites per document20248.649
% International Collaboration

International Collaboration accounts for the articles that have been produced by researchers from several countries. The chart shows the ratio of a journal's documents signed by researchers from more than one country; that is including more than one country address.

YearInternational Collaboration
199926.88
200029.85
200129.15
200227.60
200331.95
200431.57
200533.47
200635.03
200736.53
200837.44
200940.51
201038.80
201139.06
201243.34
201342.47
201444.64
201544.31
201646.03
201746.50
201846.14
201944.89
202046.25
202144.65
202241.89
202341.79
202441.26
Cited documents 
Uncited documents

Ratio of a journal's items, grouped in three years windows, that have been cited at least once vs. those not cited during the following year.

DocumentsYearValue
Uncited documents1999419
Uncited documents2000413
Uncited documents2001358
Uncited documents2002336
Uncited documents2003336
Uncited documents2004303
Uncited documents2005335
Uncited documents2006398
Uncited documents2007432
Uncited documents2008429
Uncited documents2009535
Uncited documents2010572
Uncited documents2011628
Uncited documents2012698
Uncited documents2013779
Uncited documents2014870
Uncited documents2015933
Uncited documents2016999
Uncited documents20171043
Uncited documents20181130
Uncited documents20191150
Uncited documents20201231
Uncited documents20211185
Uncited documents20221275
Uncited documents20231371
Uncited documents20241234
Cited documents19997890
Cited documents20007841
Cited documents20017860
Cited documents20027805
Cited documents20038078
Cited documents20048316
Cited documents20058764
Cited documents20068993
Cited documents20079485
Cited documents20089870
Cited documents200910157
Cited documents201010713
Cited documents201111111
Cited documents201211237
Cited documents201311327
Cited documents201411509
Cited documents201511522
Cited documents201611047
Cited documents201710336
Cited documents201810048
Cited documents20199993
Cited documents202010065
Cited documents202110551
Cited documents202210864
Cited documents202310719
Cited documents202410185
% Female Authors

Evolution of the percentage of female authors.

YearFemale Percent
199927.28
200028.80
200129.16
200229.30
200330.88
200429.91
200530.46
200631.10
200731.08
200831.24
200931.71
201032.05
201132.55
201232.49
201332.64
201433.04
201532.17
201633.21
201733.73
201832.95
201934.54
202034.62
202134.77
202235.76
202335.72
202436.18
Estimated APC

It estimates the article processing charges (APCs) a journal might charge, based on its visibility, prestige, and impact as measured by the SJR. It does not reflect the actual APC, but rather a calculated approximation based on journal quality.

YearEst. APC (USD)
19994942
20004910
20014871
20024854
20034840
20044809
20054785
20064776
20074766
20084763
20094759
20104758
20114758
20124758
20134759
20144756
20154754
20164747
20174727
20184688
20194640
20204587
20214514
20224445
20234380
20244314
Estimated financial value

It represents the potential financial worth of a journal. It is obtained by multiplying the journal's Estimated APC by the total number of citable documents published over the past five years. This value reflects the hypothetical revenue a journal could generate based on its estimated publication costs and scholarly output.

YearEst. value (USD)
199913640241
200026513686
200139657335
200254240175
200367854059
200469629452
200572557944
200675439118
200777992129
200882111477
200985572658
201089036412
201191627313
201294159270
201397091528
201497149617
201595532495
201694193585
201792160688
201888403726
201986692871
202088023417
202188554544
202287117815
202385245439
202483743412
Total Cites 
Self-Cites

Evolution of the total number of citations and journal's self-citations received by a journal's published documents during the three previous years.
Journal Self-citation is defined as the number of citation from a journal citing article to articles published by the same journal.

CitesYearValue
Self Cites19993080
Self Cites20003109
Self Cites20013312
Self Cites20023259
Self Cites20033160
Self Cites20043286
Self Cites20053368
Self Cites20063124
Self Cites20073282
Self Cites20083240
Self Cites20093321
Self Cites20103273
Self Cites20113189
Self Cites20123427
Self Cites20133564
Self Cites20143264
Self Cites20152933
Self Cites20162697
Self Cites20172505
Self Cites20182367
Self Cites20192262
Self Cites20202433
Self Cites20212362
Self Cites20222167
Self Cites20232070
Self Cites20242031
Total Cites199984669
Total Cites200087908
Total Cites200189873
Total Cites200289466
Total Cites200389847
Total Cites200494937
Total Cites2005101008
Total Cites2006101907
Total Cites2007103873
Total Cites2008104158
Total Cites2009108945
Total Cites2010116385
Total Cites2011122540
Total Cites2012127720
Total Cites2013127890
Total Cites2014125476
Total Cites2015123410
Total Cites2016115464
Total Cites2017105261
Total Cites2018100965
Total Cites2019100493
Total Cites2020110335
Total Cites2021131810
Total Cites2022126574
Total Cites2023109627
Total Cites202498764
Citations per document

This indicator counts the number of citations received by documents from a journal and divides them by the total number of documents published in that journal. The chart shows the evolution of the average number of times documents published in a journal in the past two, three and four years have been cited in the current year. The two years line is equivalent to journal impact factor ™ (Thomson Reuters) metric.

Cites per documentYearValue
Cites / Doc. (4 years)199910.190
Cites / Doc. (4 years)200010.561
Cites / Doc. (4 years)200110.781
Cites / Doc. (4 years)200211.052
Cites / Doc. (4 years)200310.773
Cites / Doc. (4 years)200411.141
Cites / Doc. (4 years)200511.336
Cites / Doc. (4 years)200611.083
Cites / Doc. (4 years)200710.943
Cites / Doc. (4 years)200810.387
Cites / Doc. (4 years)200910.476
Cites / Doc. (4 years)201010.630
Cites / Doc. (4 years)201110.820
Cites / Doc. (4 years)201211.082
Cites / Doc. (4 years)201310.961
Cites / Doc. (4 years)201410.511
Cites / Doc. (4 years)201510.296
Cites / Doc. (4 years)20169.835
Cites / Doc. (4 years)20179.550
Cites / Doc. (4 years)20189.446
Cites / Doc. (4 years)20199.382
Cites / Doc. (4 years)202010.129
Cites / Doc. (4 years)202111.371
Cites / Doc. (4 years)202210.765
Cites / Doc. (4 years)20239.480
Cites / Doc. (4 years)20249.183
Cites / Doc. (3 years)199910.190
Cites / Doc. (3 years)200010.650
Cites / Doc. (3 years)200110.936
Cites / Doc. (3 years)200210.990
Cites / Doc. (3 years)200310.678
Cites / Doc. (3 years)200411.015
Cites / Doc. (3 years)200511.101
Cites / Doc. (3 years)200610.852
Cites / Doc. (3 years)200710.474
Cites / Doc. (3 years)200810.113
Cites / Doc. (3 years)200910.189
Cites / Doc. (3 years)201010.313
Cites / Doc. (3 years)201110.439
Cites / Doc. (3 years)201210.701
Cites / Doc. (3 years)201310.564
Cites / Doc. (3 years)201410.136
Cites / Doc. (3 years)20159.908
Cites / Doc. (3 years)20169.585
Cites / Doc. (3 years)20179.250
Cites / Doc. (3 years)20189.032
Cites / Doc. (3 years)20199.018
Cites / Doc. (3 years)20209.768
Cites / Doc. (3 years)202111.231
Cites / Doc. (3 years)202210.427
Cites / Doc. (3 years)20239.068
Cites / Doc. (3 years)20248.649
Cites / Doc. (2 years)19999.885
Cites / Doc. (2 years)200010.504
Cites / Doc. (2 years)200110.537
Cites / Doc. (2 years)200210.614
Cites / Doc. (2 years)200310.247
Cites / Doc. (2 years)200410.585
Cites / Doc. (2 years)200510.652
Cites / Doc. (2 years)200610.128
Cites / Doc. (2 years)20079.910
Cites / Doc. (2 years)20089.534
Cites / Doc. (2 years)20099.582
Cites / Doc. (2 years)20109.702
Cites / Doc. (2 years)20119.813
Cites / Doc. (2 years)201210.008
Cites / Doc. (2 years)20139.851
Cites / Doc. (2 years)20149.537
Cites / Doc. (2 years)20159.366
Cites / Doc. (2 years)20169.064
Cites / Doc. (2 years)20178.637
Cites / Doc. (2 years)20188.363
Cites / Doc. (2 years)20198.363
Cites / Doc. (2 years)20209.272
Cites / Doc. (2 years)202110.772
Cites / Doc. (2 years)20229.825
Cites / Doc. (2 years)20238.112
Cites / Doc. (2 years)20247.849
Citable documents 
Non-citable documents

Not every article in a journal is considered primary research and therefore "citable", this chart shows the ratio of a journal's articles including substantial research (research articles, conference papers and reviews) in three year windows vs. those documents other than research articles, reviews and conference papers.

DocumentsYearValue
Non-citable documents1999182
Non-citable documents2000273
Non-citable documents2001326
Non-citable documents2002400
Non-citable documents2003400
Non-citable documents2004398
Non-citable documents2005372
Non-citable documents2006395
Non-citable documents2007419
Non-citable documents2008456
Non-citable documents2009581
Non-citable documents2010728
Non-citable documents2011900
Non-citable documents2012993
Non-citable documents20131086
Non-citable documents20141200
Non-citable documents20151261
Non-citable documents20161300
Non-citable documents20171268
Non-citable documents20181230
Non-citable documents20191172
Non-citable documents20201126
Non-citable documents20211172
Non-citable documents20221158
Non-citable documents20231062
Non-citable documents2024965
Citable documents19998127
Citable documents20007981
Citable documents20017892
Citable documents20027741
Citable documents20038014
Citable documents20048221
Citable documents20058727
Citable documents20068996
Citable documents20079498
Citable documents20089843
Citable documents200910111
Citable documents201010557
Citable documents201110839
Citable documents201210942
Citable documents201311020
Citable documents201411179
Citable documents201511194
Citable documents201610746
Citable documents201710111
Citable documents20189948
Citable documents20199971
Citable documents202010170
Citable documents202110564
Citable documents202210981
Citable documents202311028
Citable documents202410454
Documents cited by public policy (Overton)

Evolution of the number of documents cited by public policy documents according to Overton database.

DocumentsYearValue
Overton1999330
Overton2000345
Overton2001350
Overton2002401
Overton2003361
Overton2004422
Overton2005446
Overton2006455
Overton2007543
Overton2008525
Overton2009594
Overton2010579
Overton2011554
Overton2012639
Overton2013619
Overton2014582
Overton2015540
Overton2016533
Overton2017491
Overton2018480
Overton2019480
Overton2020567
Overton2021447
Overton2022288
Overton2023194
Overton202469
Documents related to SDGs (UN)

Evolution of the number of documents related to Sustainable Development Goals defined by United Nations. Available from 2018 onwards.

DocumentsYearValue
SDG2018843
SDG2019968
SDG20201126
SDG20211141
SDG20221074
SDG2023975
SDG20241003
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