1968

6.9

2008

7.2

1976

7.0

2024

5.7

1985

5.3

1956

7.8

2000

6.9

1955

7.4

2024

6.8

1964

7.7

1970

6.3

1989

7.3

1965

6.4

1990

6.4

1964

7.0

1993

7.3

1921

6.8

1999

6.7

2005

4.7

1986

6.7