1968

0.0

1970

0.0

1974

0.0

1973

8.0

1972

7.5

1970

8.3

1986

8.1

1975

0.0

1995

0.0

1969

0.0

1974

6.3

1966

7.5

1975

8.0

1968

0.0

1978

6.0

1990

7.0

1986

4.8

2002

0.0

1973

0.0

1971

5.0

1971

0.0

2000

6.7

1990

8.0

2011

3.6

1971

0.0

1968

0.0

1998

6.1

1985

0.0

1971

6.0

0.0

2013

0.0

1979

0.0

1975

0.0

1987

0.0

1966

0.0

1970

0.0

1966

0.0

1982

1.0