1951

6.7

1932

7.0

1945

6.8

1949

6.7

1956

5.2

1949

6.8

1954

5.6

1949

5.5

1957

5.8

1945

6.0

1947

6.5

1950

5.5

2016

3.0

1971

4.0

2014

4.8

2019

6.5

2018

6.2

2009

4.6

1980

5.7

1943

6.6