1971

7.4

1992

6.6

2015

0.0

1947

6.0

1943

5.6

1965

7.9

1936

5.7

1942

6.7

2016

4.0

1956

4.2

2019

7.2

2007

5.4

1976

4.6

1988

6.2

1997

5.8

1912

2.5

1948

6.0

1960

3.0

2015

9.0

2004

6.5