1953

7.1

1977

3.2

1951

2.0

1941

6.6

1940

5.6

2009

4.8

1941

6.8

1986

7.8

1977

4.2

1940

6.0

1936

5.0

2006

6.5

1974

0.0

2004

7.7

2001

6.5

2006

5.5

1999

5.8

1998

7.3

1947

5.0

1998

7.4