7.8
2002
6.3
1998
6.4
1990
6.9
1949
7.7
6.6
1991
7.0
2006
4.7
6.1
1989
5.9
1996
6.0
2009
2008
4.9
1988
6.2
2004
6.7
5.7
1995
3.5
2013
0.0
1984