1964

0.0

1981

7.6

0.0

1990

0.0

0.0

1975

6.5

1989

0.0

0.0

1991

0.0

1986

0.0

1983

0.0

1990

0.0

0.0

2006

0.0

0.0

1985

0.0

0.0

1989

0.0

0.0

0.0