1943

7.5

1927

0.0

1932

7.0

1953

7.3

1931

8.1

1974

6.7

1998

6.5

2004

6.3

2005

7.5

1981

6.5

2007

6.9

1980

6.4

2007

6.7

2005

6.7

2002

6.5

1996

6.9

2006

5.2

2000

5.6

1993

6.9

1994

6.7