SJR Compare Countries

Documents

Year	United States	China	United Kingdom
1996	24983	284	7832
1997	26553	345	8585
1998	27417	577	9362
1999	28199	541	9309
2000	30571	640	10952
2001	31125	962	10274
2002	34695	801	11066
2003	36238	949	11443
2004	39211	1665	12363
2005	42504	1667	13940
2006	45955	2906	15523
2007	43954	3211	16078
2008	46121	6145	15841
2009	54522	6681	17976
2010	58890	10199	19590
2011	62087	12029	20960
2012	61322	8710	22072
2013	63836	8776	23552
2014	67184	10994	23480
2015	71624	13002	24835
2016	74237	14882	26114
2017	75702	15361	27174
2018	79822	19037	29075
2019	79945	25351	29981
2020	83913	30473	32026
2021	85046	33378	32429
2022	84576	42169	32269
2023	84619	46103	32972
2024	87289	51547	36156

Citable documents

Year	United States	China	United Kingdom
1996	24152	276	7417
1997	25743	341	8194
1998	26525	575	8964
1999	27184	538	8843
2000	29519	635	10391
2001	29966	957	9674
2002	33081	785	10342
2003	34598	933	10769
2004	37444	1648	11629
2005	40364	1645	12982
2006	43180	2772	14431
2007	41070	3175	14895
2008	43438	6093	14709
2009	51161	6611	16671
2010	55122	10121	18168
2011	57868	11894	19267
2012	57394	8533	20346
2013	59634	8613	21560
2014	62114	10681	21324
2015	66307	12544	22369
2016	67521	14334	23293
2017	68803	14737	24072
2018	72123	18298	25567
2019	73072	24480	26588
2020	76794	29407	28288
2021	78211	32443	28831
2022	77764	40971	28788
2023	76987	44749	29321
2024	80626	50251	32796

Non-citable documents

Year	United States	China	United Kingdom
1996	831	8	415
1997	810	4	391
1998	892	2	398
1999	1015	3	466
2000	1052	5	561
2001	1159	5	600
2002	1614	16	724
2003	1640	16	674
2004	1767	17	734
2005	2140	22	958
2006	2775	134	1092
2007	2884	36	1183
2008	2683	52	1132
2009	3361	70	1305
2010	3768	78	1422
2011	4219	135	1693
2012	3928	177	1726
2013	4202	163	1992
2014	5070	313	2156
2015	5317	458	2466
2016	6716	548	2821
2017	6899	624	3102
2018	7699	739	3508
2019	6873	871	3393
2020	7119	1066	3738
2021	6835	935	3598
2022	6812	1198	3481
2023	7632	1354	3651
2024	6663	1296	3360

Cited documents

Year	United States	China	United Kingdom
1996	20891	214	6529
1997	22653	271	7313
1998	23545	380	7991
1999	24312	421	8028
2000	26482	465	9727
2001	27124	661	8978
2002	30212	679	9692
2003	31381	755	10178
2004	33904	1261	11062
2005	36624	1292	12306
2006	39267	2085	13519
2007	37339	2511	14162
2008	39293	4211	13880
2009	46362	4359	15562
2010	50388	6893	17233
2011	52088	7593	18327
2012	52838	6152	19404
2013	54715	6544	20771
2014	57593	8131	20761
2015	61326	9378	21619
2016	63381	12035	22878
2017	65016	12925	23693
2018	68439	15976	25256
2019	68428	21196	26045
2020	70905	24954	27394
2021	69651	27012	27100
2022	63964	33580	25465
2023	53740	34667	22438
2024	27923	20639	13344

Non-cited documents

Year	United States	China	United Kingdom
1996	4092	70	1303
1997	3900	74	1272
1998	3872	197	1371
1999	3887	120	1281
2000	4089	175	1225
2001	4001	301	1296
2002	4483	122	1374
2003	4857	194	1265
2004	5307	404	1301
2005	5880	375	1634
2006	6688	821	2004
2007	6615	700	1916
2008	6828	1934	1961
2009	8160	2322	2414
2010	8502	3306	2357
2011	9999	4436	2633
2012	8484	2558	2668
2013	9121	2232	2781
2014	9591	2863	2719
2015	10298	3624	3216
2016	10856	2847	3236
2017	10686	2436	3481
2018	11383	3061	3819
2019	11517	4155	3936
2020	13008	5519	4632
2021	15395	6366	5329
2022	20612	8589	6804
2023	30879	11436	10534
2024	59366	30908	22812

Cites

Year	United States	China	United Kingdom
1996	817161	3961	187176
1997	889799	6924	218190
1998	962782	7515	247729
1999	1095707	14159	285548
2000	1331223	14175	394514
2001	1289917	15255	366608
2002	1499480	18729	395529
2003	1534761	21852	435722
2004	1623561	40489	513494
2005	1668194	36495	551558
2006	1736972	44656	585276
2007	1582302	54180	587187
2008	1521590	66300	530043
2009	1646608	77087	557170
2010	1760052	117006	593765
2011	1670799	129413	590589
2012	1591070	132854	589597
2013	1574104	152604	608070
2014	1541522	191347	592948
2015	1527258	213541	594884
2016	1464673	276610	582683
2017	1436228	300814	565326
2018	1382348	357503	582138
2019	1220811	420491	526549
2020	1173196	499387	502700
2021	839712	428730	382775
2022	503379	371595	239866
2023	262538	229921	128565
2024	66401	61710	37035

External Cites

Year	United States	China	United Kingdom
1996	393816	2259	125924
1997	444867	4145	148198
1998	477131	4781	169296
1999	563898	8244	197673
2000	687375	6654	277213
2001	664447	8434	259191
2002	790976	9707	273506
2003	815748	11643	305484
2004	858333	24098	368261
2005	881196	20394	391442
2006	918377	23018	415984
2007	837037	28646	420359
2008	808274	35764	378948
2009	860158	41503	396183
2010	943113	59926	425746
2011	884299	70956	422288
2012	843592	65638	422170
2013	842088	77611	435749
2014	825528	88494	433657
2015	829210	101689	438432
2016	801108	132161	430436
2017	804547	136198	418852
2018	784425	156950	437937
2019	703137	183720	396721
2020	687429	220363	384744
2021	488729	171093	290013
2022	284641	136116	179262
2023	150212	85407	95426
2024	36002	22121	26267

Self Cites

Year	United States	China	United Kingdom
1996	423345	1702	61252
1997	444932	2779	69992
1998	485651	2734	78433
1999	531809	5915	87875
2000	643848	7521	117301
2001	625470	6821	107417
2002	708504	9022	122023
2003	719013	10209	130238
2004	765228	16391	145233
2005	786998	16101	160116
2006	818595	21638	169292
2007	745265	25534	166828
2008	713316	30536	151095
2009	786450	35584	160987
2010	816939	57080	168019
2011	786500	58457	168301
2012	747478	67216	167427
2013	732016	74993	172321
2014	715994	102853	159291
2015	698048	111852	156452
2016	663565	144449	152247
2017	631681	164616	146474
2018	597923	200553	144201
2019	517674	236771	129828
2020	485767	279024	117956
2021	350983	257637	92762
2022	218738	235479	60604
2023	112326	144514	33139
2024	30399	39589	10768

% International Collaboration

Year	United States	China	United Kingdom
1996	15.06	27.82	13.94
1997	7.96	29.57	11.68
1998	8.43	24.61	11.62
1999	7.77	26.99	11.85
2000	8.52	27.19	12.58
2001	8.23	19.54	13.31
2002	8.94	25.34	13.61
2003	10.08	31.30	16.22
2004	11.90	27.69	18.36
2005	12.50	27.53	19.54
2006	13.81	23.02	20.41
2007	15.37	23.33	21.00
2008	21.39	19.19	25.73
2009	13.75	19.14	22.87
2010	13.28	15.85	22.92
2011	13.75	15.63	22.89
2012	14.56	23.71	23.71
2013	15.66	26.83	26.03
2014	16.90	26.82	29.60
2015	17.72	27.99	31.08
2016	18.54	30.18	32.71
2017	19.51	32.37	33.94
2018	21.18	33.53	35.84
2019	22.54	30.54	37.48
2020	23.57	30.33	40.24
2021	24.69	29.73	43.04
2022	25.26	27.71	44.45
2023	25.82	27.79	46.48
2024	26.46	29.41	47.13

% Open Access

Year	United States	China	United Kingdom
1996	9.35	9.15	6.44
1997	9.64	8.70	7.44
1998	10.75	9.71	8.82
1999	10.60	18.11	8.55
2000	10.99	20.00	10.33
2001	10.52	17.98	11.55
2002	11.65	18.60	12.30
2003	12.69	18.34	13.96
2004	13.08	18.98	14.66
2005	14.11	22.98	16.34
2006	15.34	13.76	17.21
2007	16.09	15.23	19.14
2008	17.86	12.47	21.68
2009	20.35	14.83	23.75
2010	20.70	13.67	23.46
2011	20.84	18.11	24.58
2012	21.79	19.02	25.41
2013	22.49	22.00	29.26
2014	24.64	23.63	38.99
2015	26.32	24.40	46.56
2016	29.20	26.99	57.42
2017	30.64	34.05	63.80
2018	33.94	38.97	66.30
2019	37.12	40.56	67.00
2020	38.92	40.63	68.28
2021	41.42	42.34	72.87
2022	42.11	49.03	74.54
2023	43.62	52.12	76.76
2024	37.24	45.13	74.12

Country/Region Comparison