1980
73.1
11.8
14.6
0.5
1985
78.4
8.1
13.0
0.4
1990
83.4
8.9
7.0
0.8
1995
83.8
4.8
10.3
1.1
2000
78.7
3.5
15.8
2.0
2003
72.8
2.7
22.6
1.9
2004
71.1
2.1
24.6
2.2
2005
67.8
27.6
2.4
: - 2005
