1987

7.1

1984

4.2

1985

5.9

1982

7.6

1989

6.8

1971

8.1

1988

5.7

1993

5.5

1987

0.0

1991

6.6

2002

6.7

1997

3.8

1992

5.9

1985

7.5

1984

7.5

1989

5.8

1980

6.6

1994

5.1

1982

6.1

2001

6.4

1990

7.9

1983

0.0

2022

6.8

1990

6.2