1960

6.3

1974

5.8

1959

6.3

1959

6.2

1996

5.4

2004

3.1

1971

6.1

1970

5.6

1972

6.2

2020

5.7

1969

6.5

1972

6.3

1971

6.2

1975

5.5

1962

6.1

1936

5.3

1976

5.1

1993

6.2

1969

5.9

2015

6.7