Country/Region Comparison

Documents
YearUnited StatesChinaUnited Kingdom
1996138223724155
1997138104994245
1998134156574503
1999139797264606
2000140988624522
2001147979734470
20021423510464425
20031558015624632
20041649218064807
20051674627154746
20061749933544991
20071830744155088
20081832650025099
20091890859355130
20101909065185266
20112035379045477
20122075986465377
201321169103265468
201421870112415927
201522131124546317
201622024132516082
201722153146256336
201822886167066505
201923036182586531
202024855227867434
202126941274908371
202224983359997456
202323349323536943
202422161343726428
Citable documents
YearUnited StatesChinaUnited Kingdom
1996135343704023
1997135014994095
1998131146564372
1999135017244363
2000136548574279
2001143619694250
20021370110414199
20031494415524388
20041591017974583
20051613227034532
20061659633384725
20071743144034813
20081727349764774
20091752058814745
20101788464354898
20111902977065072
20121944383015010
201320162101565166
201420620110585559
201520835122505933
201620689130405687
201720709143295895
201821565163896051
201921625177776064
202023114220906821
202125418269347703
202223371353696860
202321540314786349
202420701336205915
Non-citable documents
YearUnited StatesChinaUnited Kingdom
19962882132
19973090150
19983011131
19994782243
20004445243
20014364220
20025345226
200363610244
20045829224
200561412214
200690316266
200787612275
2008105326325
2009138854385
2010120683368
20111324198405
20121316345367
20131007170302
20141250183368
20151296204384
20161335211395
20171444296441
20181321317454
20191411481467
20201741696613
20211523556668
20221612630596
20231809875594
20241460752513
Cited documents
YearUnited StatesChinaUnited Kingdom
1996133932714015
1997131063174043
1998131014574278
1999135405064418
2000137546044354
2001141616934250
2002137698034265
20031516111464481
20041603114124632
20051626022914566
20061691727974825
20071776236434916
20081781141394946
20091818150464922
20101860256885093
20111980570225302
20122019076385215
20132066593365299
201421247102945730
201521456117176128
201621375124235905
201721445139286133
201822137159816276
201922068169936267
202023739213057105
202125563255947966
202222810326756903
202319004259915832
20248988126762808
Non-cited documents
YearUnited StatesChinaUnited Kingdom
1996429101140
1997704182202
1998314200225
1999439220188
2000344258168
2001636280220
2002466243160
2003419416151
2004461394175
2005486424180
2006582557166
2007545772172
2008515863153
2009727889208
2010488830173
2011548882175
20125691008162
2013504990169
2014623947197
2015675737189
2016649828177
2017708697203
2018749725229
20199681265264
202011161481329
202113781896405
202221733324553
2023434563621111
202413173216963620
Cites
YearUnited StatesChinaUnited Kingdom
19969172898570227980
199793147510808253297
1998100610512102287217
1999105042216996299601
2000117170616199325742
2001112012118456308206
2002114073726216331640
2003126304133656360036
2004133670956697352028
2005136995181765362071
2006131637692667365639
20071374032128781362336
20081357763146282371982
20091342273169395361305
20101335785199288394093
20111330623224572374591
20121230038244765333189
20131221080283851336055
20141170312325866354813
20151100449360656328046
20161012766364633293012
2017943178415495292588
2018853315470657268745
2019759721447544225458
2020742443581008227034
2021510941439129179404
2022291632359521102388
202313050515847945250
202426436309948726
External Cites
YearUnited StatesChinaUnited Kingdom
19964864706344181898
19974986137787203456
19985364549052231517
199957252012730242175
200065720610860267599
200161668511234252060
200263391017882271041
200370907122508295859
200475757437854287386
200578025050718297481
200674975157610299531
200778553776806295623
200878352588399305920
200977493397102296282
2010787003114607326784
2011783586127170309595
2012724762134430273649
2013730510151681278488
2014706813168528294417
2015670875182332270091
2016619891180680241009
2017593668197500245031
2018540732217986224316
2019486521200604187798
2020494966295462190424
2021332999176098149986
202219092813279185238
2023845195688937625
202416822111697078
Self Cites
YearUnited StatesChinaUnited Kingdom
1996430819222646082
1997432862302149841
1998469651305055700
1999477902426657426
2000514500533958143
2001503436722256146
2002506827833460599
20035539701114864177
20045791351884364642
20055897013104764590
20065666253505766108
20075884955197566713
20085742385788366062
20095673407229365023
20105487828468167309
20115470379740264996
201250527611033559540
201349057013217057567
201446349915733860396
201542957417832457955
201639287518395352003
201734951021799547557
201831258325267144429
201927320024694037660
202024747728554636610
202117794226303129418
202210070422673017150
2023459861015907625
20249614198251648
% International Collaboration
YearUnited StatesChinaUnited Kingdom
199625.6033.6038.36
199725.0925.2539.98
199827.4826.1839.73
199927.2724.3840.10
200024.0719.9540.16
200118.0416.4434.25
200220.9321.7036.68
200329.9222.9248.51
200430.9323.5352.40
200531.2122.8050.61
200631.5620.0453.32
200734.3920.3456.84
200835.2122.5558.40
200935.1820.0059.63
201036.4922.2360.62
201137.2922.5362.63
201237.8621.6363.08
201340.1722.4064.36
201441.3423.6565.26
201542.8923.2267.96
201643.9823.6867.99
201745.6524.3869.59
201846.1124.5270.56
201945.9622.9871.03
202046.5421.8672.25
202146.8419.8772.37
202248.3316.6674.68
202346.5616.0074.12
202447.3514.6375.09
% Open Access
YearUnited StatesChinaUnited Kingdom
199645.1522.3134.78
199750.9319.8442.87
199852.1727.0942.42
199950.1525.7643.38
200049.7926.3342.48
200148.7122.4042.08
200248.7522.5643.75
200352.2825.4846.87
200452.8327.5748.74
200555.7627.3748.55
200656.1126.4549.29
200760.3527.2553.38
200865.0632.0956.05
200970.9835.7961.36
201072.3837.0162.53
201172.7638.5263.16
201274.3242.1063.62
201374.8644.7566.90
201477.8249.8872.30
201579.1552.2176.68
201679.6154.7483.21
201780.5659.0184.93
201881.2262.9185.24
201981.4758.3987.08
202083.4663.5889.37
202186.1970.8890.50
202287.7676.0691.30
202384.8271.2989.56
202472.9365.7784.01
Powered by:
Scopus®
© 2025 SCImago Journal & Country Rank