SJR Compare Countries

Documents

Year	United States	China	United Kingdom
1996	17930	2222	4557
1997	17910	2437	5332
1998	18623	3085	5684
1999	18118	3301	5512
2000	21304	3881	5758
2001	19573	5431	5588
2002	20258	4570	6027
2003	23016	5318	6826
2004	23182	8718	6848
2005	24358	12438	7548
2006	27356	12957	8472
2007	26351	13729	8398
2008	26113	14919	7910
2009	28063	16672	8834
2010	27545	18900	8977
2011	28476	20907	8999
2012	29883	21205	9540
2013	31499	25751	9940
2014	33521	28463	10247
2015	33227	32006	11505
2016	35664	34574	11755
2017	33850	34665	11458
2018	37066	41623	12569
2019	36194	53232	12726
2020	34961	58617	12749
2021	34530	67460	12799
2022	33170	64669	12279
2023	30165	62377	11565
2024	29242	66958	11750

Citable documents

Year	United States	China	United Kingdom
1996	17725	2217	4503
1997	17741	2431	5277
1998	18342	3074	5620
1999	17784	3284	5438
2000	20883	3869	5703
2001	19188	5419	5466
2002	19815	4527	5863
2003	22591	5297	6695
2004	22678	8682	6654
2005	23363	12420	7220
2006	26477	12913	8136
2007	25525	13662	7983
2008	25365	14859	7558
2009	27186	16580	8427
2010	26781	18813	8627
2011	27663	20797	8624
2012	29095	21081	9215
2013	30517	25554	9558
2014	32413	28244	9938
2015	32201	31653	11029
2016	34237	34205	11265
2017	32751	34292	10974
2018	35752	41228	12050
2019	35145	52675	12279
2020	33791	58167	12164
2021	33459	66936	12316
2022	32037	63835	11792
2023	29103	61664	11101
2024	28432	66326	11408

Non-citable documents

Year	United States	China	United Kingdom
1996	205	5	54
1997	169	6	55
1998	281	11	64
1999	334	17	74
2000	421	12	55
2001	385	12	122
2002	443	43	164
2003	425	21	131
2004	504	36	194
2005	995	18	328
2006	879	44	336
2007	826	67	415
2008	748	60	352
2009	877	92	407
2010	764	87	350
2011	813	110	375
2012	788	124	325
2013	982	197	382
2014	1108	219	309
2015	1026	353	476
2016	1427	369	490
2017	1099	373	484
2018	1314	395	519
2019	1049	557	447
2020	1170	450	585
2021	1071	524	483
2022	1133	834	487
2023	1062	713	464
2024	810	632	342

Cited documents

Year	United States	China	United Kingdom
1996	15869	1419	4150
1997	16120	1635	4891
1998	16428	2147	5175
1999	16194	2477	5092
2000	18366	3017	5260
2001	17588	4032	5123
2002	18243	3591	5475
2003	20408	4359	6125
2004	20349	7202	6192
2005	21090	10072	6621
2006	23360	10961	7203
2007	23175	11874	7394
2008	23171	12819	7164
2009	24920	14489	7930
2010	24701	16527	8190
2011	25232	18153	8156
2012	26424	18804	8680
2013	27913	22020	9161
2014	28967	24712	9350
2015	29413	27666	10431
2016	31487	30228	10762
2017	30370	31192	10515
2018	31453	36344	11451
2019	31901	45354	11566
2020	31523	50199	11770
2021	30962	56619	11833
2022	28804	56223	10976
2023	23789	48501	9539
2024	12668	24928	5566

Non-cited documents

Year	United States	China	United Kingdom
1996	2061	803	407
1997	1790	802	441
1998	2195	938	509
1999	1924	824	420
2000	2938	864	498
2001	1985	1399	465
2002	2015	979	552
2003	2608	959	701
2004	2833	1516	656
2005	3268	2366	927
2006	3996	1996	1269
2007	3176	1855	1004
2008	2942	2100	746
2009	3143	2183	904
2010	2844	2373	787
2011	3244	2754	843
2012	3459	2401	860
2013	3586	3731	779
2014	4554	3751	897
2015	3814	4340	1074
2016	4177	4346	993
2017	3480	3473	943
2018	5613	5279	1118
2019	4293	7878	1160
2020	3438	8418	979
2021	3568	10841	966
2022	4366	8446	1303
2023	6376	13876	2026
2024	16574	42030	6184

Cites

Year	United States	China	United Kingdom
1996	876808	36261	196857
1997	926616	36737	260503
1998	1028333	48224	284761
1999	955686	55044	274902
2000	1078323	82714	321457
2001	1078851	93862	315923
2002	1151369	107083	335583
2003	1281683	152257	366991
2004	1261061	189423	384702
2005	1226817	226939	377761
2006	1321899	280271	454783
2007	1320361	322208	434614
2008	1269129	345476	420312
2009	1327804	382320	463742
2010	1301634	429151	464730
2011	1257943	467906	469186
2012	1244777	496518	453665
2013	1287579	599945	505781
2014	1165399	635630	444432
2015	1118098	711743	458002
2016	1069600	716694	438996
2017	1000594	730303	392233
2018	900007	782276	383925
2019	795943	827862	331219
2020	695233	795901	315795
2021	480757	693573	224075
2022	306305	553211	139890
2023	150290	274472	73066
2024	35829	66389	17526

External Cites

Year	United States	China	United Kingdom
1996	456945	12590	147061
1997	488514	14768	194068
1998	540395	15492	213136
1999	507633	15790	203293
2000	569357	21388	238170
2001	561201	25542	235154
2002	611552	29536	250694
2003	681669	42649	272644
2004	673731	48440	283747
2005	648975	54863	274734
2006	695086	71179	334245
2007	699410	80555	316042
2008	664508	84982	305329
2009	699093	99341	337624
2010	686583	116088	332755
2011	662763	123964	337535
2012	654292	125807	322228
2013	667682	163699	362037
2014	619414	155207	316389
2015	592103	181111	324827
2016	570700	180001	316280
2017	546527	188504	280462
2018	486987	199849	275094
2019	445279	208516	239676
2020	396597	200590	231015
2021	270959	154347	162443
2022	170346	113838	101157
2023	78996	57257	50147
2024	18026	14087	11321

Self Cites

Year	United States	China	United Kingdom
1996	419863	23671	49796
1997	438102	21969	66435
1998	487938	32732	71625
1999	448053	39254	71609
2000	508966	61326	83287
2001	517650	68320	80769
2002	539817	77547	84889
2003	600014	109608	94347
2004	587330	140983	100955
2005	577842	172076	103027
2006	626813	209092	120538
2007	620951	241653	118572
2008	604621	260494	114983
2009	628711	282979	126118
2010	615051	313063	131975
2011	595180	343942	131651
2012	590485	370711	131437
2013	619897	436246	143744
2014	545985	480423	128043
2015	525995	530632	133175
2016	498900	536693	122716
2017	454067	541799	111771
2018	413020	582427	108831
2019	350664	619346	91543
2020	298636	595311	84780
2021	209798	539226	61632
2022	135959	439373	38733
2023	71294	217215	22919
2024	17803	52302	6205

% International Collaboration

Year	United States	China	United Kingdom
1996	32.65	25.38	42.88
1997	30.40	18.38	46.42
1998	30.42	17.50	44.63
1999	30.45	16.87	44.99
2000	28.54	17.11	45.17
2001	28.80	13.46	44.69
2002	31.46	17.83	48.37
2003	34.99	23.88	54.75
2004	38.12	19.30	57.39
2005	39.07	15.09	59.01
2006	42.04	16.66	59.36
2007	43.80	17.95	60.55
2008	43.17	18.66	62.55
2009	43.01	18.14	62.98
2010	44.10	18.72	64.94
2011	44.25	18.86	64.63
2012	45.29	20.35	65.93
2013	46.22	20.89	68.02
2014	45.97	22.22	69.37
2015	49.13	23.16	68.90
2016	48.65	23.97	71.87
2017	51.30	26.00	73.77
2018	51.07	25.77	75.30
2019	54.09	23.92	75.66
2020	56.23	23.44	77.32
2021	57.20	21.63	79.38
2022	57.17	23.00	80.03
2023	57.90	22.12	80.58
2024	59.86	22.05	82.26

% Open Access

Year	United States	China	United Kingdom
1996	24.00	14.58	17.86
1997	35.49	18.55	28.32
1998	35.74	19.71	29.17
1999	36.63	19.30	29.03
2000	35.23	20.87	32.22
2001	38.78	20.71	36.01
2002	37.00	22.60	34.89
2003	37.77	24.69	37.40
2004	39.02	25.17	40.83
2005	39.61	24.93	40.79
2006	39.69	24.27	42.34
2007	41.14	26.18	43.88
2008	42.72	25.62	46.71
2009	42.39	27.73	47.49
2010	44.57	26.25	50.79
2011	45.32	30.45	52.32
2012	47.00	31.53	51.19
2013	46.62	30.89	53.90
2014	46.96	31.33	60.40
2015	51.68	34.07	64.56
2016	53.68	34.82	69.83
2017	55.18	39.77	73.81
2018	56.99	44.64	74.64
2019	57.26	48.60	74.40
2020	61.13	51.00	77.49
2021	63.95	58.08	80.21
2022	66.34	50.77	81.28
2023	69.25	51.46	82.04
2024	66.24	45.91	79.91

Country/Region Comparison