VLDB 1996 2001 2006 2011   WWW 1996 2001 2006 2011
   held in: India Italy Korea USA      held in: France China UK India
USA 57.6 54.4 62.8 53.8   USA 49.1 54.0 50.9 72.5
China - - - 4.3   China - 0.9 4.7 5.4
Hong Kong - 1.7 3.8 5.4   Hong Kong - - 2.0 0.2
India 4.2 1.7 2.8 0.9   India - 2.3 4.5 2.2
Japan 4.2 3.4 1.3 -   Japan 1.7 0.4 4.8 -
Korea - 3.4 - 1.5   Singapore - 1.3 0.4 0.2
Taiwan - - 1.3 0.7   Taiwan 1.7 1.3 - -
Singapore 2.1 6.4 2.6 2.9   Austria - - 1.2 1.4
Austria - 1.1 - -   Belgium - - 1.2 -
Belgium - - 0.6 -   Czech Repub 1.7 - 1.2 -
Denmark 0.7 - - 1.8   Denmark - 1.3 - -
Finland 2.1 - - -   France 12.1 0.6 - -
France 8.3 5.9 1.3 1.0   Germany 7.8 4.5 5.9 2.2
Germany 7.3 8.8 5.9 4.8   Greece 3.4 1.3 - 1.0
Greece - 1.7 1.3 1.3   Hungary - - 1.2 -
Italy 4.2 1.7 2.6 3.4   Ireland - - 1.2 -
Netherlands 2.1 - 0.3 -   Italy 4.3 3.8 3.9 4.5
Norway - 1.7 - 1.0   Netherlands 1.7 4.1 0.3 -
Sweden - - - 1.0   Portugal - - 0.2 -
Switzerland 2.1 1.7 1.3 2.0   Russia - 1.3 - -
UK - 1.7 2.9 3.1   Spain - 1.3 1.2 0.2
Australia 2.1 - 0.3 0.7   Sweden 1.7 2.1 - -
Brazil - - - 1.0   Switzerland - 1.3 - 1.6
Canada 3.1 3.1 7.7 7.5   UK 6.0 6.3 8.9 1.5
Israel - 1.7 1.3 1.6   Australia 1.7 3.0 1.2 -
Qatar - - - 0.2   Argentina - 0.4 - -
            Brazil - 1.1 0.5 -
  Regional Distribution   Canada 3.4 2.0 2.4 4.5
USA 57.6 54.4 62.8 53.8   Chile - - - 0.8
Asia 10.4 16.5 11.8 15.8   S. Africa - 1.3 - -
Europe 26.7 24.3 16.1 19.3   Israel 1.7 4.2 2.4 1.5
Other 5.2 4.7 9.3 11.0   New Zealand 1.7 - - -
              Regional Distribution
            USA 49.1 54.0 50.9 72.5
            Asia 3.4 6.2 16.3 8.0
            Europe 38.8 27.8 26.4 12.6
            Other 8.6 12.0 6.4 6.9


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