1991

6.8

2001

7.8

1995

9.0

1984

0.0

1973

7.5

1964

5.9

1997

6.1

1987

10.0

2010

5.0

1932

6.0

2014

6.2

2007

6.7

0.0

2007

6.8

1956

6.9

1990

0.0

1990

0.0

1976

0.0

1981

0.0

2025

0.0