1950

8.1

1955

7.5

2013

0.0

2001

6.9

1963

6.3

1999

7.3

1951

5.2

1950

8.1

1987

7.0

1949

6.6

1933

6.2

1967

6.8

1964

6.0

2006

5.5

1984

0.0

1932

7.0

1919

6.9

1975

7.5

2015

5.7

2008

0.0