1976

6.5

1921

6.8

1993

6.2

1928

7.8

1989

7.5

1990

6.4

1985

5.7

2010

7.2

2001

6.5

1990

6.9

1952

6.7

2020

7.4

1965

7.0

1986

6.7

2025

6.0

2000

6.9

1965

7.5

1982

7.4

1994

6.6

1955

7.2