1929

4.8

1975

7.9

1985

5.3

1988

7.1

1990

5.6

1994

6.2

2015

7.5

2004

6.1

1993

4.5

1971

6.2

2004

6.8

1951

5.9

1952

6.9

1963

5.2

1979

5.1

1928

6.4

1924

0.0

1941

6.2

2020

7.1

1938

4.7