1989

5.1

1993

7.4

2021

6.0

1985

6.5

1973

6.9

1983

7.0

2001

5.9

1997

7.3

1974

6.5

1999

6.4

1939

6.1

1934

7.5

1952

7.9

1966

6.4

1973

7.2

1982

5.2

1988

7.7

1994

6.1

1955

7.0

1965

7.1