1955

7.3

1990

5.0

1969

3.6

1930

5.5

2015

6.8

1998

6.2

1978

4.3

2025

7.0

1990

6.8

1976

1.0

1940

3.0

1957

7.2

2010

0.0

1988

5.5

2020

8.3

1933

6.0

1973

0.0

1950

8.1

1972

7.4

2008

6.9