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country,2008,2009,2010,2011
Australia,0.48,0.65,0.61,0.61
Austria,0.14,0.17,0.15,0.15
Belgium,0.34,0.38,0.43,0.42
Canada,1.12,1.52,1.49,1.41
Cyprus,0.01,0.02,0.03,0.03
"Czech Republic",0.23,0.35,0.43,0.42
Denmark,0.05,0.1,0.11,0.13
Finland,0.17,0.22,0.23,0.23
France,2.2,2.66,2.77,2.76
Germany,3.17,3.26,3.05,3.09
Greece,0.38,0.47,0.59,0.73
"Hong Kong",0.13,0.2,0.17,0.16
Iceland,0,0.01,0.01,0.01
Ireland,0.14,0.26,0.29,0.28
Israel,0.18,0.23,0.23,0.23
Italy,1.69,1.95,2.18,2.16
Japan,2.65,3.36,3.39,3.27
"Republic of Korea",0.77,0.89,0.81,0.82
Luxembourg,0.01,0.01,0.01,0.01
Malta,0.01,0.01,0.01,0.01
Netherlands,0.25,0.31,0.38,0.4
"New Zealand",0.1,0.14,0.15,0.14
Norway,0.07,0.08,0.09,0.09
Portugal,0.43,0.53,0.6,0.61
Singapore,0.06,0.09,0.06,0.06
Slovakia,0.26,0.32,0.38,0.34
Slovenia,0.05,0.06,0.08,0.09
Spain,2.62,4.21,4.66,4.49
Sweden,0.29,0.39,0.39,0.4
Switzerland,0.1,0.15,0.15,0.14
Taiwan,0.45,0.64,0.57,0.54
"United Kingdom of Great Britain and Northern Ireland",1.73,2.33,2.48,2.34
"United States of America",8.98,14.3,15.03,14.96