1960

6.6

1957

6.2

1968

5.0

1953

6.4

1951

0.0

2002

6.8

2002

6.0

2001

7.5

1931

7.0

1947

6.9

2010

6.5

1997

6.3

1987

5.3

1999

8.6

2024

9.3

2003

6.4

2009

7.2

1996

5.6

1998

6.5

1999

7.0