ccording to Essential Science IndicatorsSM, among the 145 top-performing countries in all fields, Japan ranked #4 for citations, #2 for papers, and #36 for citations per paper. The tables below contain rankings of all fields in Japan. SOURCE: Essential Science Indicators from the January 1, 2007 update update covering a ten-year plus ten-month period, January 1996-October 31, 2006. ARCHIVE: from October 2003 - view Japan's rankings; 1992-June 30, 2002.

10-Year Country Rankings for: Japan
Total for Japan:	Papers	Citations	Citations Per Paper
	784,945	6,522,893	8.31
Rank for Japan among the 145    top performing countries:	#2	#4	#36
Japan's most cited paper.

Rank	Field	Papers	Citations	Citations Per Paper
1	CLINICAL MEDICINE	162,036	1,453,939	8.97
2	CHEMISTRY	118,959	1,030,251	8.66
3	PHYSICS	115,203	840,805	7.30
4	BIOLOGY & BIOCHEMISTRY	62,706	812,483	12.96
5	MOLECULAR BIOLOGY & GENETICS	24,896	510,732	20.51
6	NEUROSCIENCE & BEHAVIOR	26,192	329,908	12.60
7	MATERIALS SCIENCE	50,683	248,967	4.91
8	PLANT & ANIMAL SCIENCE	37,185	221,401	5.95
9	IMMUNOLOGY	10,520	201,120	19.12
10	ENGINEERING	65,027	200,084	3.08
11	PHARMACOLOGY & TOXICOLOGY	20,458	159,046	7.77
12	MICROBIOLOGY	13,357	140,529	10.52
13	GEOSCIENCES	13,943	96,514	6.92
14	SPACE SCIENCE	8,187	92,465	11.29
15	ENVIRONMENT/ECOLOGY	8,143	50,908	6.25
16	AGRICULTURAL SCIENCES	11,556	44,453	3.85
17	COMPUTER SCIENCE	14,405	28,510	1.98
18	MATHEMATICS	11,887	25,456	2.14
19	PSYCHIATRY/PSYCHOLOGY	4,008	17,564	4.38
20	SOCIAL SCIENCES, GENERAL	2,893	7,543	2.61
21	ECONOMICS & BUSINESS	2,231	5,479	2.46
22	MULTIDISCIPLINARY	470	4,736	10.08
SOURCE: Essential Science Indicators.

Number of Citations (In 5-year Intervals):

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Average Citations per Paper (In 5-year Intervals):

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SOURCE: Essential Science Indicators