1987

0.0

1984

3.2

1982

0.0

2001

7.2

2006

5.2

1975

5.1

1981

4.0

1980

6.3

1966

4.5

1969

6.0

1983

4.2

2007

8.2

1993

5.4

1983

3.0

1985

5.8

1966

0.0

1978

5.2

1983

1.0