1963

7.9

1924

7.8

1965

8.1

1973

7.1

2005

7.0

1943

4.8

2013

6.8

2001

4.3

1974

6.8

2010

6.6

1942

4.3

2010

7.1

2009

6.7

2011

5.6

1929

6.7

1994

6.0

1992

6.4

1934

0.0

1997

5.3

1941

4.0