Top nations in mathematics

Data provided by Thomson Reuters from its Essential Science Indicators, 1 January 1998-31 December 2008

May 7, 2009

CountryPapers CitationsCitations per paper
1 Denmark1,477 6,639 4.49
2 Scotland2,153 9,454 4.39
3 United States69,395 302,581 4.36
4 England12,265 52,033 4.24
5 Switzerland2,759 11,396 4.13
6 Norway1,312 5,311 4.05
7 Singapore1,401 5,640 4.03
8 Australia6,079 24,216 3.98
9 The Netherlands3,637 14,403 3.96
10 Sweden2,931 11,411 3.89
11 Austria2,450 9,480 3.87
12 Belgium3,318 12,582 3.79
13 Finland1,608 5,968 3.71
14 Israel5,214 19,246 3.69
15 Germany19,731 71,788 3.64
16 France23,976 85,766 3.58
17 New Zealand1,326 4,659 3.51
18 Canada12,189 41,676 3.42
19 Chile1,2 4,072 3.32
20 Italy13,261 41,125 3.10
The data above were extracted from the Essential Science Indicators database of Thomson Reuters. This database, currently covering the period January 1998 through to December 2008, surveys only journal articles (original research reports and review articles) indexed by Thomson Reuters. Articles are assigned to a category based on the journals in which they were published and Thomson Reuters’ journal-to-category field-definition scheme. Both articles tabulated and citation counts to those articles are for the period indicated. Here our ranking in mathematics (including statistics) is by citations per paper – among nations that published 1,000 or more papers during the period – to reveal weighted impact. For articles with multiple authors from different nations, each nation receives full, not fractional, citation credit. Essential Science Indicators lists nations ranked in the top 50 per cent for a field over a given period, based on total citations. In mathematics, 83 nations are listed, meaning 166 were surveyed. Forty-two nations published at least 1,000 papers in this field during the period. For more information on Thomson Reuters’ Essential Science Indicators, see http://scientific.thomsonreuters.com/products/esi.

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