1932

6.9

1953

7.3

1931

8.1

1981

6.4

1996

6.9

1930

7.2

2005

0.0

1956

4.6

2017

5.2

1958

7.5

1956

6.4

1948

7.7

1997

6.7

1993

6.9

2000

6.2

2000

5.7

2003

5.4

2008

6.6

2001

7.3

2006

2.0