European Union (15 countries)
2000
1.53
European Union (15 countries)
2001
1.58
European Union (15 countries)
2002
1.61
European Union (15 countries)
2003
1.66
European Union (15 countries)
2004
1.63
European Union (15 countries)
2005
1.66
European Union (15 countries)
2006
1.67
European Union (15 countries)
2007
1.7
European Union (15 countries)
2008
1.79
European Union (15 countries)
2009
1.92
European Union (15 countries)
2010
2.0
European Union (15 countries)
2011
1.99
European Union (27 countries)
2000
1.34
European Union (27 countries)
2001
1.36
European Union (27 countries)
2002
1.39
European Union (27 countries)
2003
1.42
European Union (27 countries)
2004
1.39
European Union (27 countries)
2005
1.4
European Union (27 countries)
2006
1.42
European Union (27 countries)
2007
1.43
European Union (27 countries)
2008
1.46
European Union (27 countries)
2009
1.57
European Union (27 countries)
2010
1.64
European Union (27 countries)
2011
1.59
Luxembourg
2000
2.39
Luxembourg
2001
2.65
Luxembourg
2002
2.56
Luxembourg
2003
2.5
Luxembourg
2004
2.49
Luxembourg
2005
2.75
Luxembourg
2006
2.61
Luxembourg
2007
2.95
Luxembourg
2008
3.29
Luxembourg
2009
3.24
Luxembourg
2010
3.25
Luxembourg
2011
3.3
Netherlands
2000
2.43
Netherlands
2001
2.46
Netherlands
2002
2.66
Netherlands
2003
2.78
Netherlands
2004
2.73
Netherlands
2005
2.79
Netherlands
2006
2.93
Netherlands
2007
2.86
Netherlands
2008
2.82
Netherlands
2009
2.84
Netherlands
2010
2.82
Netherlands
2011
2.89
Switzerland
2000
3.32
Switzerland
2001
3.37
Switzerland
2002
3.43
Switzerland
2003
3.54
Switzerland
2004
3.45
Switzerland
2005
3.44
Switzerland
2006
3.46
Switzerland
2007
3.7
Switzerland
2008
3.74
Switzerland
2009
3.59
Switzerland
2010
3.64
United Kingdom
2000
2.13
United Kingdom
2001
2.15
United Kingdom
2002
2.26
United Kingdom
2003
2.36
United Kingdom
2004
2.34
United Kingdom
2005
2.5
United Kingdom
2006
2.56
United Kingdom
2007
2.65
United Kingdom
2008
2.8
United Kingdom
2009
2.99
United Kingdom
2010
3.09
United Kingdom
2011
3.13