1955

7.1

1990

7.5

1993

7.9

1961

7.7

1964

6.2

1978

7.2

1965

6.7

1966

6.2

1954

6.7

2007

5.6

1968

6.0

2017

5.0

1918

0.0

1975

8.0

1941

7.2

1970

5.9

1946

7.6

1937

5.5

2019

6.3

1975

5.4