1983

0.0

1995

6.6

1996

0.0

1989

6.5

1984

0.0

1988

7.1

2010

8.5

1987

4.8

1988

8.1

1973

0.0

2000

0.0

1999

9.1

2009

8.2

2013

7.8

1982

8.2

1979

0.0

2016

1.0

1969

0.0

1978

0.0

1975

0.0