1984

7.6

1977

4.7

1985

3.4

1972

7.9

1985

7.7

1987

6.5

1985

4.0

1996

5.3

1988

5.5

1972

7.4

2021

5.0

1981

7.5

1976

4.8

1973

6.6

1983

7.0

2004

4.8