1939

7.5

1953

6.9

1932

7.3

1996

7.3

2005

6.7

1993

7.2

1966

7.2

1998

6.8

1953

7.3

1999

7.1

1987

7.3

1953

7.9

2001

7.8

2004

7.3

2007

6.3

1992

7.7

1980

7.3