Countries
|
1992
|
2000
|
2011
|
Luxembourg
|
4.91
|
4.84
|
5.59
|
United Kingdom
|
4.66
|
4.45
|
4.29
|
Belgium
|
4.71
|
4.74
|
3.38
|
Denmark
|
7.85
|
4.96
|
3.15
|
Germany
|
4.16
|
3.43
|
3.06
|
Czech Republic
|
3.96
|
3.2
|
2.9
|
Poland
|
1.92
|
2.08
|
2.03
|
France
|
2.16
|
2.38
|
1.92
|
Austria
|
2.09
|
1.75
|
1.9
|
Spain
|
1.01
|
1.4
|
1.77
|
Slovakia
|
2.06
|
1.83
|
1.72
|
Bulgaria
|
2.67
|
2.16
|
1.54
|
Latvia
|
1.69
|
1.09
|
1.51
|
Lithuania
|
1.89
|
1.6
|
1.47
|
Estonia
|
1.46
|
1.32
|
1.35
|
Switzerland
|
1.39
|
1.17
|
1.25
|
Ireland
|
1.28
|
1.27
|
1.13
|
Slovenia
|
1.12
|
1.03
|
0.99
|
Liechtenstein
|
1.51
|
1.32
|
0.95
|
Albania
|
0.43
|
1.45
|
0.65
|
Sweden
|
0.75
|
0.61
|
0.5
|
Finland
|
0.3
|
0.4
|
0.39
|
Norway
|
0.3
|
0.25
|
0.22
|