1985

6.8

2010

6.4

1988

0.0

1963

0.0

1984

3.5

1989

0.0

1995

6.9

1998

6.5

1993

4.5

1998

5.5

1982

4.0

1990

4.0

1996

5.3

1997

10.0

1989

8.0