SJR Compare Countries

Documents

Year	United States	China	United Kingdom
1996	65436	9963	13075
1997	65103	10823	13830
1998	62427	14107	13164
1999	60995	12021	12919
2000	64560	16394	13796
2001	63384	23172	13065
2002	70469	22770	13931
2003	77660	26072	15164
2004	92920	42851	17962
2005	105265	64665	21116
2006	97839	74633	21039
2007	87030	85402	20495
2008	88823	100077	20931
2009	89164	107920	20926
2010	92917	123885	21126
2011	92840	156067	21600
2012	91314	164129	21375
2013	93472	177578	22012
2014	95519	187074	24444
2015	101226	152093	26780
2016	101905	165168	28785
2017	101526	176632	28609
2018	102590	193631	29789
2019	101981	227028	31129
2020	99089	237939	30950
2021	95883	254420	31946
2022	95649	310395	32778
2023	91476	327194	32754
2024	82077	350786	32041

Citable documents

Year	United States	China	United Kingdom
1996	64580	9915	12896
1997	64117	10802	13752
1998	61927	14099	13093
1999	60618	12005	12829
2000	64160	16368	13704
2001	62320	23110	12842
2002	69091	22684	13666
2003	76031	25987	14819
2004	91663	42782	17704
2005	102356	64568	20447
2006	95226	74489	20488
2007	84728	85268	19842
2008	86780	99867	20318
2009	87085	107512	20355
2010	90643	123476	20520
2011	90455	155576	20900
2012	88830	163511	20624
2013	90909	176862	21210
2014	92889	186182	23659
2015	98435	151194	25901
2016	98719	164057	27629
2017	98385	175233	27424
2018	99179	192092	28561
2019	98543	225060	29777
2020	95601	235940	29643
2021	92348	252065	30422
2022	92004	307622	31364
2023	88312	324418	31533
2024	79613	348769	30861

Non-citable documents

Year	United States	China	United Kingdom
1996	856	48	179
1997	986	21	78
1998	500	8	71
1999	377	16	90
2000	400	26	92
2001	1064	62	223
2002	1378	86	265
2003	1629	85	345
2004	1257	69	258
2005	2909	97	669
2006	2613	144	551
2007	2302	134	653
2008	2043	210	613
2009	2079	408	571
2010	2274	409	606
2011	2385	491	700
2012	2484	618	751
2013	2563	716	802
2014	2630	892	785
2015	2791	899	879
2016	3186	1111	1156
2017	3141	1399	1185
2018	3411	1539	1228
2019	3438	1968	1352
2020	3488	1999	1307
2021	3535	2355	1524
2022	3645	2773	1414
2023	3164	2776	1221
2024	2464	2017	1180

Cited documents

Year	United States	China	United Kingdom
1996	47105	5366	9939
1997	48208	6409	10833
1998	46700	7973	10407
1999	45879	7998	10364
2000	49127	11296	11213
2001	49318	15113	10544
2002	54381	16022	11237
2003	58893	18520	11871
2004	68222	31836	13910
2005	74621	46915	15502
2006	71294	53819	15845
2007	64648	62450	15779
2008	65563	73070	16489
2009	68484	79853	16612
2010	70975	90680	16843
2011	70996	107359	17255
2012	71390	112330	17573
2013	71794	121431	18054
2014	74049	130329	20104
2015	79283	121972	22021
2016	80925	136706	24219
2017	81994	148957	24536
2018	83909	164055	25614
2019	84725	192693	26892
2020	82886	202089	27234
2021	79047	210484	27535
2022	74160	242770	27057
2023	62000	227010	24131
2024	29341	137354	13874

Non-cited documents

Year	United States	China	United Kingdom
1996	18331	4597	3136
1997	16895	4414	2997
1998	15727	6134	2757
1999	15116	4023	2555
2000	15433	5098	2583
2001	14066	8059	2521
2002	16088	6748	2694
2003	18767	7552	3293
2004	24698	11015	4052
2005	30644	17750	5614
2006	26545	20814	5194
2007	22382	22952	4716
2008	23260	27007	4442
2009	20680	28067	4314
2010	21942	33205	4283
2011	21844	48708	4345
2012	19924	51799	3802
2013	21678	56147	3958
2014	21470	56745	4340
2015	21943	30121	4759
2016	20980	28462	4566
2017	19532	27675	4073
2018	18681	29576	4175
2019	17256	34335	4237
2020	16203	35850	3716
2021	16836	43936	4411
2022	21489	67625	5721
2023	29476	100184	8623
2024	52736	213432	18167

Cites

Year	United States	China	United Kingdom
1996	1269912	71006	256149
1997	1266397	79093	284684
1998	1438387	100866	283007
1999	1414417	125670	315756
2000	1656394	178870	378048
2001	1700969	207040	360095
2002	1893002	280862	385244
2003	2180678	343215	392903
2004	2332765	503583	480862
2005	2378762	660407	504469
2006	2272533	750472	526416
2007	2235651	914695	582510
2008	2271826	1062871	549346
2009	2308159	1278005	533426
2010	2489231	1495110	565092
2011	2493808	1655082	563143
2012	2318367	1823281	571471
2013	2312758	2100656	601296
2014	2384972	2441092	677356
2015	2440854	2714326	710260
2016	2385689	3051615	752920
2017	2330851	3528813	752373
2018	2272412	3919455	748762
2019	2029377	4270428	709049
2020	1781755	4175665	665923
2021	1327831	3581973	539311
2022	826899	3045342	372031
2023	413152	1755918	197376
2024	91345	465854	49193

External Cites

Year	United States	China	United Kingdom
1996	827500	39591	208103
1997	835670	41813	232158
1998	963638	51250	230906
1999	941713	61231	259948
2000	1121659	85802	311755
2001	1141871	88675	298196
2002	1278502	123270	318782
2003	1480768	156337	322479
2004	1577892	204873	398415
2005	1604894	255971	418112
2006	1540247	294014	432400
2007	1519809	357967	486384
2008	1547422	421196	450872
2009	1563954	498722	436103
2010	1696120	579774	464764
2011	1706018	627770	463893
2012	1582791	673508	469200
2013	1584733	751705	493340
2014	1652895	862142	558458
2015	1707897	926459	585509
2016	1678829	1016470	623710
2017	1670970	1153183	626832
2018	1646050	1253984	626704
2019	1476820	1358757	594280
2020	1302565	1279405	558510
2021	964317	975789	451756
2022	592586	742015	311578
2023	294030	417042	163971
2024	64618	107401	39792

Self Cites

Year	United States	China	United Kingdom
1996	442412	31415	48046
1997	430727	37280	52526
1998	474749	49616	52101
1999	472704	64439	55808
2000	534735	93068	66293
2001	559098	118365	61899
2002	614500	157592	66462
2003	699910	186878	70424
2004	754873	298710	82447
2005	773868	404436	86357
2006	732286	456458	94016
2007	715842	556728	96126
2008	724404	641675	98474
2009	744205	779283	97323
2010	793111	915336	100328
2011	787790	1027312	99250
2012	735576	1149773	102271
2013	728025	1348951	107956
2014	732077	1578950	118898
2015	732957	1787867	124751
2016	706860	2035145	129210
2017	659881	2375630	125541
2018	626362	2665471	122058
2019	552557	2911671	114769
2020	479190	2896260	107413
2021	363514	2606184	87555
2022	234313	2303327	60453
2023	119122	1338876	33405
2024	26727	358453	9401

% International Collaboration

Year	United States	China	United Kingdom
1996	15.42	12.94	22.34
1997	13.58	14.20	24.70
1998	14.29	12.07	24.79
1999	13.00	13.17	22.51
2000	15.81	13.99	25.50
2001	15.82	9.60	26.55
2002	18.16	13.77	29.12
2003	19.79	15.66	34.13
2004	20.29	13.00	35.65
2005	22.25	10.93	37.45
2006	26.62	10.87	40.06
2007	28.76	10.72	40.51
2008	28.05	10.61	41.76
2009	25.74	10.72	41.52
2010	24.95	10.76	42.90
2011	25.60	9.72	44.44
2012	27.28	10.01	46.63
2013	28.76	10.57	49.32
2014	30.62	11.81	51.32
2015	32.04	16.90	52.27
2016	33.36	18.06	54.50
2017	34.22	19.05	56.68
2018	36.64	20.29	60.15
2019	38.54	20.35	62.05
2020	39.57	20.67	65.33
2021	39.29	19.15	65.90
2022	39.78	17.72	67.76
2023	40.10	16.98	69.07
2024	43.40	17.64	72.57

% Open Access

Year	United States	China	United Kingdom
1996	12.39	12.55	9.10
1997	12.20	12.30	9.56
1998	11.75	13.18	9.69
1999	12.32	13.39	10.67
2000	13.27	12.54	11.47
2001	12.93	15.35	12.20
2002	13.22	13.79	13.62
2003	14.95	16.27	15.20
2004	16.75	19.73	17.57
2005	15.96	18.64	17.77
2006	14.90	17.25	17.42
2007	14.96	16.69	17.90
2008	16.50	15.12	20.12
2009	18.46	15.95	22.12
2010	18.83	14.56	23.51
2011	19.18	13.60	24.51
2012	20.11	14.12	25.61
2013	22.20	16.11	29.42
2014	24.45	17.00	38.43
2015	27.38	25.38	45.91
2016	28.79	23.56	53.24
2017	31.45	26.53	59.18
2018	34.62	30.12	61.67
2019	36.71	32.56	62.37
2020	41.42	34.14	65.33
2021	44.18	30.77	66.47
2022	43.31	30.68	65.16
2023	42.91	28.95	63.28
2024	37.08	27.84	54.27

Country/Region Comparison