1973

7.1

2005

6.9

1963

7.9

1924

7.8

2009

6.6

2001

4.3

1974

6.7

1965

8.1

1929

6.7

2010

6.6

1992

6.4

2011

5.5

2010

7.1

1994

6.0

1938

0.0

1943

4.8

2013

6.8

1966

5.2

1942

4.3

2005

6.4