Country/Region Comparison

Documents
YearUnited StatesChinaUnited Kingdom
19964763251274
19975384561521
19985304421602
19995491701730
20005623851933
20015879761913
200265721082039
200371241312210
200476411732445
200581512082554
200687363972780
200785966553049
200888516552950
20091073413203706
20101068214683602
20111095129753803
20121118717624068
20131126517274340
20141189619434517
20151199621844612
20161205127684910
20171234430744944
20181306337355282
20191241653425127
20201282562055540
20211324679235898
202213276100325900
202313461126196113
202414193157686980
Citable documents
YearUnited StatesChinaUnited Kingdom
19964713251252
19975346561495
19985270411579
19995443701697
20005557851905
20015781761890
200263781071988
200368091312114
200473571732354
200577282052460
200681193902645
200780166462891
200883126442826
20091009612953509
20101004914513388
20111035729473545
20121056117143851
20131066616864063
20141103918934129
20151114621164216
20161111326504417
20171139828874455
20181188935874842
20191160851104797
20201191559755166
20211226275955418
20221238896295457
202312546121195710
202413344156126568
Non-citable documents
YearUnited StatesChinaUnited Kingdom
199650022
199738026
199834123
199948033
200066028
200198023
2002194151
2003315096
2004284091
2005423394
20066177135
20075809158
200853911124
200963825197
201063317214
201159428258
201262648217
201359941277
201485750388
201585068396
2016938118493
2017946187489
20181174148440
2019808232330
2020910230374
2021984328480
2022888403443
2023915500403
2024849156412
Cited documents
YearUnited StatesChinaUnited Kingdom
19964342201122
19974953501406
19984886381456
19995057641601
20005194691781
20015434631788
20026090961916
200365591242038
200470421652282
200573911882401
200677873622584
200776065012816
200880295742753
2009961910653353
2010958311933293
2011999618493456
20121008914613748
20131024515473973
20141057216384045
20151062519744086
20161059923864323
20171099526944312
20181154833674700
20191102246834712
20201129355055034
20211132968235152
20221079485014948
2023929997884523
2024522971023012
Non-cited documents
YearUnited StatesChinaUnited Kingdom
19964215152
19974316115
19984184146
19994346129
200042916152
200144513125
200248212123
20035657172
20045998163
200576020153
200694935196
2007990154233
200882281197
20091115255353
20101099275309
20119551126347
20121098301320
20131020180367
20141324305472
20151371210526
20161452382587
20171349380632
20181515368582
20191394659415
20201532700506
202119171100746
202224821531952
2023416228311590
2024896486663968
Cites
YearUnited StatesChinaUnited Kingdom
199627857176048627
1997299398312359755
1998368001276884544
1999434797407476814
2000424057321088609
20014715242952105918
2002539802513598757
20035575625698122228
200455501514328130960
200556901013855139522
200654691717680144035
200749732719774151016
200846506629044140828
200955119533050166031
201054182543795142495
201153801745614145837
201249632848617147297
201344290749493147514
201442991849882148047
201538355164694141645
201635515170942137504
201733707079937126304
201830160494303128990
2019254249110427118954
2020225769132803109575
202118002013100690487
202210343512488659500
2023507968898531271
202413032246779048
External Cites
YearUnited StatesChinaUnited Kingdom
199617491049137722
1997184474196445720
1998234782172467335
1999275358237759181
2000272244196867798
2001297633182885417
2002344727312176615
2003356525379196678
200434876610405103954
20053617007728110387
200634679210338115176
200731233511806121226
200829912116021111398
200934892118199131872
201034579222685111935
201134235025337115644
201232296126313117464
201328347526040116774
201427995526041118105
201525056533561112958
201623452435229110129
201722560137886100208
201820199341660103488
20191743664749595911
20201587455708088816
20211264074703173130
2022717734197048177
2023352852873325222
2024876674427102
Self Cites
YearUnited StatesChinaUnited Kingdom
199610366126910905
1997114924115914035
1998133219104417209
1999159439169717633
2000151813124220811
2001173891112420501
2002195075201422142
2003201037190725550
2004206249392327006
2005207310612729135
2006200125734228859
2007184992796829790
20081659451302329430
20092022741485134159
20101960332111030560
20111956672027730193
20121733672230429833
20131594322345330740
20141499632384129942
20151329863113328687
20161206273571327375
20171114694205126096
2018996115264325502
2019798836293223043
2020670247572320759
2021536138397517357
2022316628291611323
202315511602526049
20244266172351946
% International Collaboration
YearUnited StatesChinaUnited Kingdom
199617.8956.0024.18
199715.0642.8622.16
199815.6380.9525.47
199916.2844.2924.57
200018.9650.5927.11
200118.2357.8930.21
200217.8860.1929.03
200321.5262.6035.16
200423.6771.6839.39
200523.0463.9437.59
200626.4253.6541.29
200727.1436.4943.29
200832.0846.5647.80
200927.2836.8244.58
201027.9136.5144.11
201128.3321.6547.70
201231.7645.4049.95
201333.9155.5951.43
201432.7852.6552.67
201533.8159.4852.80
201635.6251.9153.97
201736.2253.8454.07
201836.6652.5856.76
201939.4341.8959.94
202041.2543.8461.52
202143.4540.2565.01
202242.8837.9566.36
202344.2734.9867.69
202446.4434.1170.14
% Open Access
YearUnited StatesChinaUnited Kingdom
199613.9616.006.12
199714.9016.079.47
199815.3316.679.43
199915.1510.008.96
200015.9016.4711.17
200116.9214.4715.11
200218.3216.6719.37
200319.6510.6918.28
200420.5515.6120.65
200521.4918.2722.44
200621.8318.3922.95
200722.4110.5327.16
200823.8615.7330.64
200924.8910.3035.62
201026.4710.1534.29
201126.299.6535.00
201226.2218.3335.45
201329.1621.7737.40
201428.6320.7946.31
201532.2526.4752.62
201633.8123.3063.03
201735.9925.1166.83
201836.7730.5870.31
201937.2329.7671.06
202039.0735.5771.73
202140.1035.5474.60
202241.4541.4073.64
202342.1335.8873.20
202437.2825.9767.25
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