1932

0.0

1940

5.2

1966

7.3

1929

6.5

1953

7.7

2014

5.9

1992

7.5

1929

7.5

2006

6.9

1915

4.5

2002

7.1

1948

7.9

2017

6.7

1961

7.2

2005

6.9

1989

7.2

1996

6.8

1958

7.6

1984

8.0

1998

7.4