1972

7.1

2004

7.3

1988

7.8

1997

7.1

1975

7.7

1994

7.4

1977

7.1

1902

7.9

1932

7.3

1968

7.8

1955

6.0

1984

6.2

2004

7.2

1951

7.7

1990

7.3

1987

6.5

1993

5.5

1968

7.7

2018

6.4

1997

7.4