1962

7.3

2006

6.0

2006

6.3

1990

6.7

1965

6.3

2005

5.9

1983

6.5

1997

6.8

1994

3.2

2008

0.0

1982

1.7

1981

6.4

2007

6.7

2001

6.2

2005

6.7

1985

6.1

1973

6.4

2005

3.6

2004

5.6

1989

4.6