1989

8.1

1981

6.4

1995

0.0

1987

6.3

1972

7.3

1974

6.6

1993

4.5

1974

6.0

2002

6.7

1985

5.6

2005

0.0

1974

8.0

1974

6.3

2000

7.3

1997

7.5

1987

4.6

1969

5.5

1977

7.4

1986

0.0

1972

5.8