Country/Region Comparison

Documents
YearUnited StatesChinaUnited Kingdom
19966794631832
19977859642328
19987845342326
19998249412401
20008708372824
20018838682868
200297381182740
200399831272749
2004104241662749
2005109022183069
2006121765693838
2007121626914238
2008123617113992
2009131297784128
2010141308394522
2011145218594526
20121501410484788
20131575611665263
20141575914265173
20151679317265357
20161654719825121
20171642119615055
20181688222885257
20191713232825236
20201869041185689
20212034967715856
20221941983785831
20231885579985830
20241993597456107
Citable documents
YearUnited StatesChinaUnited Kingdom
19966556621750
19977609642225
19987541332174
19997817392203
20008260372613
20018256682611
200289991182464
200389621242411
200494501632394
200597812162694
2006107585543288
2007106326863626
2008108506993503
2009116747713561
2010126068233691
2011128638303771
20121329710223966
20131377811234347
20141342713644241
20151424216584438
20161410319024204
20171388119044183
20181418222104360
20191447331804360
20201582039504651
20211759566445000
20221693981975042
20231616977994913
20241751792985239
Non-citable documents
YearUnited StatesChinaUnited Kingdom
1996238182
19972500103
19983041152
19994322198
20004480211
20015820257
20027390276
200310213338
20049743355
200511212375
2006141815550
200715305612
2008151112489
200914557567
2010152416831
2011165829755
2012171726822
2013197843916
2014233262932
2015255168919
2016244480917
2017254057872
2018270078897
20192659102876
202028701681038
20212754127856
20222480181789
20232686199917
20242418447868
Cited documents
YearUnited StatesChinaUnited Kingdom
19965580451525
19976390431857
19986319341920
19996610391979
20007198342313
20017335672351
200279641062180
200383271112273
200486451462314
200592211932552
200696553242904
200795924183198
2008100364453158
2009106585543304
2010115126123460
2011118656563554
2012123658513765
2013132129824204
20141301912314100
20151394715184304
20161391916744078
20171382517344083
20181429320484334
20191455427384408
20201590335544805
20211687457534929
20221526771844585
20231247159853966
2024581833222091
Non-cited documents
YearUnited StatesChinaUnited Kingdom
1996121418307
1997146921471
199815260406
199916392422
200015103511
200115031517
2002177412560
2003165616476
2004177920435
2005168125517
20062521245934
200725702731040
20082325266834
20092471224824
201026182271062
20112656203972
201226491971023
201325441841059
201427401951073
201528462081053
201626283081043
20172596227972
20182589240923
20192578544828
20202787564884
202134751018927
2022415211941246
2023638420131864
20241411764234016
Cites
YearUnited StatesChinaUnited Kingdom
1996177261117650453
1997234773494356112
1998243176150664291
1999269520139570686
20003288222394108204
2001317251359089102
2002365598676887241
20033829605397105596
200442023710591128279
20053969846960105604
20063924958631112243
200738346714341117242
200839573217093122556
200941334519948116409
201042488422154127754
201139038621628114795
201238859234583119696
201339881733819129130
201436342245576114049
201537630150487133092
201634013352517115387
201731629754497109798
201829181057185105869
20192607626281191602
20202487027588998570
20211871777706468867
20221113816765141218
2023528823189219476
20241248273214980
External Cites
YearUnited StatesChinaUnited Kingdom
19969742590537557
1997129364422741300
1998133376113848285
1999150360113854298
2000192933186485078
2001180405295467844
2002210272514966991
2003218594413782146
20042404177529103374
2005223280526181991
2006220735589987242
2007218565942589987
20082227601128194513
20092334331292190374
201024448815049100047
20112214411333387886
20122219202212593780
20132261332057899600
20142044862795188186
201521911030543104460
20161989933137190262
20171882422979087338
20181726753062683881
20191577873330572869
20201521754174278711
20211082673823253796
2022631022881731785
2023293461365714574
2024650930863487
Self Cites
YearUnited StatesChinaUnited Kingdom
19967983627112896
199710540971614812
199810980036816006
199911916025716388
200013588953023126
200113684663621258
2002155326161920250
2003164366126023450
2004179820306224905
2005173704169923613
2006171760273225001
2007164902491627255
2008172972581228043
2009179912702726035
2010180396710527707
2011168945829526909
20121666721245825916
20131726841324129530
20141589361762525863
20151571911994428632
20161411402114625125
20171280552470722460
20181191352655921988
20191029752950618733
2020965273414719859
2021789103883215071
202248279388349433
202323536182354902
2024597342351493
% International Collaboration
YearUnited StatesChinaUnited Kingdom
199610.5131.7513.97
19975.5525.009.54
19987.8364.7110.06
19996.1563.419.54
20006.9664.8610.13
20016.8354.4111.02
20028.9146.6112.48
20039.2734.6514.55
200410.9852.4117.82
200511.8134.8618.74
200612.8421.9717.27
200716.1521.1319.66
200819.3727.0023.02
200914.6430.8522.46
201013.4330.5121.27
201113.3330.9721.25
201213.9334.8322.72
201314.9532.6824.93
201415.7430.7227.37
201516.7631.9830.26
201618.5227.0432.57
201719.4531.3633.53
201820.8532.2135.80
201923.0926.0839.53
202023.4725.5045.32
202124.6121.1547.28
202227.3119.9848.98
202326.3118.2049.66
202425.8416.8049.29
% Open Access
YearUnited StatesChinaUnited Kingdom
199619.9028.5718.45
199718.4426.5619.80
199820.4517.6521.41
199919.4624.3919.78
200022.2329.7322.77
200119.1929.4123.68
200221.3541.5323.80
200324.8632.2826.92
200423.1239.1627.83
200523.0427.0627.44
200624.0028.3025.64
200726.6026.4827.82
200829.6432.6329.51
200933.3430.3332.92
201034.3533.1330.96
201135.1436.2032.88
201236.3737.6033.25
201340.0439.3735.68
201439.6540.1839.24
201538.3145.0246.74
201639.8642.9453.99
201741.9839.9857.53
201844.7643.3161.02
201947.7842.9664.61
202049.9852.7768.40
202152.4364.0571.06
202253.7267.4472.46
202351.5960.7471.82
202438.8053.2463.60
Powered by:
Scopus®
© 2025 SCImago Journal & Country Rank