1955

7.5

1950

8.1

1978

0.0

1995

6.3

2015

5.8

1932

7.0

1919

6.9

1975

7.5

1952

6.8

2006

5.4

2008

7.6

1963

0.0

1963

6.3

1962

7.2

1998

6.7

1954

8.1

1955

7.2

1968

7.0

1977

7.3

2013

5.2