2003

6.3

1965

6.2

1955

7.2

1964

6.3

1964

6.2

1965

6.1

2001

6.8

1953

6.6

1965

6.9

1950

6.8

1962

7.0

1963

6.8

1964

6.6

1964

6.2

1993

6.3

1954

6.1

1967

7.0

1965

6.7

1968

6.2

1952

6.2