1969

5.9

1972

5.0

1961

5.2

1989

4.6

1976

5.1

1932

6.6

2020

0.0

1953

6.4

2009

6.7

1948

5.5

2009

7.0

1965

6.9

1965

6.6

2006

5.0

1954

5.0

1990

6.4

1993

3.5

1947

6.2

1991

3.3

1956

3.8