1973

0.0

1966

6.1

2006

4.3

1973

5.2

1972

0.0

1965

1.0

1972

6.0

1993

2.0

1976

1.0

1964

8.0

2010

0.0

1980

0.0

1992

0.0

1972

0.0

1978

0.0

1996

0.0

1994

5.5

1971

7.1

1983

5.9

1981

2.0

1985

0.0

1988

5.7

1972

5.7

1966

6.2

1980

5.3

1980

6.6

1985

5.4

1987

4.6

1984

4.0

1991

6.4

2011

5.7