1966

6.5

1966

6.6

1967

6.5

1965

6.3

1964

6.6

1992

3.8

1972

6.3

1963

6.5

1969

6.1

1971

6.2

1975

5.5

1960

6.3

2006

6.2

1974

5.9

1973

5.7

1968

6.5

1967

5.8

1971

6.1

1970

5.7

1972

6.2