Table 1: Distribution of DFE papers among countries during the periods 1999-2000 and 2009-2010.

1999-2000 2009-2010
Country/Territory # Papers % of 80 Rank Country/Territory # Papers % of 473 Rank IF
(average)
World 80 100.0 World 473 100.0 1.868
European Union 31 38.7 European Union 142 30.0 2.048
USA 26 32.5 1 USA 104 22.0 1 2.252
United kingdom 10 12.5 2 China 89 18.8 2 1.729
Turkey 6 7.5 3 Brazil 58 12.3 3 1.764
Switzerland 6 7.5 3 Japan 50 10.6 4 1.504
Netherland 6 7.5 3 Germany 33 7.0 5 2.134
China (Taiwan) 5 6.3 6 Italy 25 5.3 6 2.005
Germany 5 6.3 6 Australia 21 4.4 7 2.434
Japan 5 6.3 6 Turkey 21 4.4 7 1.452
Canada 3 3.8 9 United Kingdom 20 4.2 9 2.385
Belgium 3 3.8 9 South Korea 16 3.4 10 1.826
France 2 2.5 11 Spain 13 2.7 11 2.051
Italy 2 2.5 11 Switzerland 13 2.7 11 2.847
Iran 1 1.3 13 Belgium 12 2.5 13 2.736
Poland 1 1.3 13 France 12 2.5 13 1.689
Thailand 1 1.3 13 Canada 10 2.1 15 1.339
Denmark 1 1.3 13 India 10 2.1 15 1.228
Czech Rep 1 1.3 13 Netherland 9 1.9 17 1.789
Australia 1 1.3 13 Iran 8 1.7 18 1.483
New Zealand 1 1.3 13 Greece 6 1.3 19 1.746
Sweden 1 1.3 13 New Zealand 6 1.3 19 1.859
Brazil 1 1.3 13 Singapore 6 1.3 19 1.651
Hungary 1 1.3 13 Egypt 5 1.1 22 1.556
South Korea 1 1.3 13 Saudi Arabia 5 1.1 22 1.607
Greece 1 1.3 13 Serbia 5 1.1 22 1.020

(IF: impact factor). Countries publishing DFE research in 1999-2000 and 2009-2010 are displayed in decreasing order according to the number of publications for each time period. The country average of 2010 Impact Factors is mentioned for the 2009-2010 period.

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