SJR Compare Countries

Documents

Year	United States	China	United Kingdom
1996	12790	1813	2868
1997	12788	2816	3015
1998	12449	2791	3118
1999	11833	3533	3040
2000	13389	4358	3416
2001	11389	4984	3112
2002	12525	4601	3298
2003	13476	5544	3425
2004	14496	7968	3548
2005	17122	10643	3919
2006	16965	12623	4244
2007	18562	13448	4136
2008	19031	15517	4291
2009	19220	17696	4639
2010	19740	19656	4422
2011	23377	21796	5068
2012	19706	24218	4757
2013	22092	30077	4984
2014	21517	35957	5241
2015	22771	42708	6007
2016	22899	44746	6366
2017	23226	46987	6418
2018	23154	53439	6870
2019	24028	62195	7065
2020	24503	66267	7652
2021	24046	73331	8231
2022	22929	91624	7885
2023	21958	95384	7806
2024	21820	108847	7880

Citable documents

Year	United States	China	United Kingdom
1996	12648	1810	2852
1997	12617	2816	2997
1998	11937	2786	3073
1999	11168	3519	2947
2000	12668	4336	3333
2001	10544	4963	3001
2002	12200	4586	3205
2003	13060	5522	3349
2004	14233	7956	3465
2005	16622	10626	3788
2006	16579	12591	4128
2007	18107	13268	3935
2008	18746	15473	4182
2009	18800	17639	4518
2010	19334	19550	4279
2011	22823	21675	4873
2012	19076	23982	4523
2013	21447	29873	4755
2014	20816	35693	5032
2015	21816	42510	5796
2016	21950	44462	6053
2017	22340	46756	6121
2018	22137	52933	6520
2019	22980	61864	6680
2020	23443	65758	7351
2021	23091	72819	7832
2022	22004	91068	7515
2023	20957	94552	7444
2024	21098	108389	7579

Non-citable documents

Year	United States	China	United Kingdom
1996	142	3	16
1997	171	0	18
1998	512	5	45
1999	665	14	93
2000	721	22	83
2001	845	21	111
2002	325	15	93
2003	416	22	76
2004	263	12	83
2005	500	17	131
2006	386	32	116
2007	455	180	201
2008	285	44	109
2009	420	57	121
2010	406	106	143
2011	554	121	195
2012	630	236	234
2013	645	204	229
2014	701	264	209
2015	955	198	211
2016	949	284	313
2017	886	231	297
2018	1017	506	350
2019	1048	331	385
2020	1060	509	301
2021	955	512	399
2022	925	556	370
2023	1001	832	362
2024	722	458	301

Cited documents

Year	United States	China	United Kingdom
1996	10986	1198	2696
1997	10624	1827	2754
1998	10764	1817	2854
1999	10154	2349	2779
2000	10707	2900	3068
2001	9873	3533	2856
2002	10785	3593	3001
2003	11294	4456	3088
2004	11308	6307	3096
2005	12898	8186	3279
2006	12781	9734	3399
2007	13140	10783	3463
2008	13300	12698	3628
2009	14859	14693	3945
2010	15669	16641	3886
2011	16818	18718	4254
2012	16504	21339	4276
2013	17733	26539	4444
2014	18026	32104	4706
2015	19421	38605	5361
2016	19850	41298	5787
2017	20207	43518	5894
2018	20839	48776	6300
2019	21948	58096	6607
2020	22546	62204	7171
2021	22265	68346	7727
2022	20768	84798	7284
2023	18623	82598	6758
2024	10190	52110	3723

Non-cited documents

Year	United States	China	United Kingdom
1996	1804	615	172
1997	2164	989	261
1998	1685	974	264
1999	1679	1184	261
2000	2682	1458	348
2001	1516	1451	256
2002	1740	1008	297
2003	2182	1088	337
2004	3188	1661	452
2005	4224	2457	640
2006	4184	2889	845
2007	5422	2665	673
2008	5731	2819	663
2009	4361	3003	694
2010	4071	3015	536
2011	6559	3078	814
2012	3202	2879	481
2013	4359	3538	540
2014	3491	3853	535
2015	3350	4103	646
2016	3049	3448	579
2017	3019	3469	524
2018	2315	4663	570
2019	2080	4099	458
2020	1957	4063	481
2021	1781	4985	504
2022	2161	6826	601
2023	3335	12786	1048
2024	11630	56737	4157

Cites

Year	United States	China	United Kingdom
1996	535959	25779	113389
1997	472434	31322	122096
1998	558506	38306	143463
1999	582794	47163	141858
2000	628969	71527	157114
2001	666119	94934	156364
2002	762466	120782	174927
2003	845392	155581	183458
2004	884741	229440	202070
2005	998149	268779	207903
2006	942505	334705	203960
2007	933457	404592	215356
2008	1040558	491830	248876
2009	1082489	608029	226946
2010	1173947	714787	236340
2011	1176211	882962	271372
2012	1123491	971318	235649
2013	1083934	1120718	238338
2014	1069595	1284964	250010
2015	1043365	1468106	270572
2016	965581	1519734	244296
2017	959654	1687120	250475
2018	884518	1847037	236839
2019	810297	1998470	224592
2020	704692	1918132	209655
2021	503492	1613945	168426
2022	311144	1353643	111043
2023	155697	773925	58353
2024	35009	188348	12855

External Cites

Year	United States	China	United Kingdom
1996	352258	15732	92035
1997	312755	18606	101167
1998	370551	22140	119202
1999	394567	26256	118139
2000	429313	39000	132162
2001	457730	48388	131263
2002	526892	61799	148141
2003	588358	80976	155671
2004	615886	117667	170537
2005	697316	135259	176040
2006	660489	172400	170799
2007	647498	203918	179864
2008	728106	241119	210890
2009	759052	295225	189209
2010	826154	333077	199743
2011	830987	394257	229019
2012	802595	419173	197290
2013	771809	461742	200863
2014	769735	516829	211293
2015	760150	561938	231043
2016	705363	559818	207119
2017	710333	592953	213647
2018	661043	603308	203003
2019	611875	632093	193454
2020	538003	585229	180396
2021	381860	442977	145024
2022	234983	336524	95472
2023	115806	183772	49663
2024	25318	43164	10691

Self Cites

Year	United States	China	United Kingdom
1996	183701	10047	21354
1997	159679	12716	20929
1998	187955	16166	24261
1999	188227	20907	23719
2000	199656	32527	24952
2001	208389	46546	25101
2002	235574	58983	26786
2003	257034	74605	27787
2004	268855	111773	31533
2005	300833	133520	31863
2006	282016	162305	33161
2007	285959	200674	35492
2008	312452	250711	37986
2009	323437	312804	37737
2010	347793	381710	36597
2011	345224	488705	42353
2012	320896	552145	38359
2013	312125	658976	37475
2014	299860	768135	38717
2015	283215	906168	39529
2016	260218	959916	37177
2017	249321	1094167	36828
2018	223475	1243729	33836
2019	198422	1366377	31138
2020	166689	1332903	29259
2021	121632	1170968	23402
2022	76161	1017119	15571
2023	39891	590153	8690
2024	9691	145184	2164

% International Collaboration

Year	United States	China	United Kingdom
1996	18.61	23.88	30.79
1997	16.60	12.39	30.32
1998	17.50	12.61	29.89
1999	18.05	9.88	30.46
2000	20.06	10.03	32.35
2001	20.00	10.01	33.13
2002	21.20	13.56	34.78
2003	22.14	14.47	37.66
2004	22.43	13.78	38.25
2005	21.85	11.26	39.98
2006	22.76	11.15	37.51
2007	23.65	12.38	43.11
2008	24.02	13.00	44.44
2009	27.12	14.26	45.12
2010	27.87	14.81	46.81
2011	26.41	16.19	46.17
2012	31.20	16.17	50.62
2013	31.16	16.55	53.07
2014	35.70	17.06	54.38
2015	38.81	17.79	57.28
2016	40.74	18.71	59.77
2017	41.64	20.56	61.34
2018	44.35	21.32	63.51
2019	45.49	21.75	66.96
2020	47.54	22.68	69.04
2021	46.54	20.62	70.30
2022	47.15	18.21	71.57
2023	47.90	17.46	72.42
2024	48.34	16.32	72.56

% Open Access

Year	United States	China	United Kingdom
1996	12.53	12.96	7.64
1997	12.49	13.21	9.55
1998	12.60	14.87	7.73
1999	12.45	15.77	9.41
2000	13.44	15.37	8.11
2001	11.14	16.23	8.10
2002	11.57	14.04	9.13
2003	12.37	14.43	9.87
2004	13.31	14.60	9.36
2005	14.00	16.18	12.15
2006	16.26	17.89	14.70
2007	18.90	16.54	15.16
2008	23.08	17.55	18.41
2009	25.65	16.90	21.04
2010	27.58	16.25	22.34
2011	25.88	15.92	22.34
2012	29.11	17.79	25.65
2013	28.41	17.23	32.24
2014	33.20	15.94	43.16
2015	36.81	15.56	51.22
2016	40.57	17.54	63.20
2017	46.25	28.25	68.82
2018	48.59	28.67	69.00
2019	49.45	30.58	69.54
2020	54.92	31.85	72.71
2021	59.05	33.02	75.30
2022	60.52	36.05	76.72
2023	61.72	35.24	77.00
2024	50.14	29.06	68.68

Country/Region Comparison