1995

7.2

1988

5.9

1983

6.7

1983

6.7

1981

5.7

2026

0.0

2014

4.7

1984

6.5

1963

7.6

1962

7.0

1958

0.0

1979

8.3

2008

5.1

1988

7.0

2014

6.5

2009

6.9

2010

4.2

2010

7.3

2005

5.8

2000

6.9