0.0

1939

7.5

1953

6.9

1932

7.3

1997

7.6

1996

7.3

2005

6.7

1993

7.2

1966

7.2

2005

4.5

1986

7.7

1986

7.6

1953

7.3

1999

7.1

1987

7.3

1953

7.9