1990

7.8

1960

6.6

1966

6.3

1971

6.0

1968

4.2

1963

6.8

1964

6.6

2023

0.0

1956

7.7

1939

5.3

1962

7.0

1968

6.4

1976

7.4

1970

7.5

1966

5.6

1964

5.0

2004

4.8

1975

6.3

1972

4.9

2016

6.2