1983

4.9

2003

5.6

1969

7.0

1967

6.5

1972

3.5

1968

6.8

1979

6.0

1976

0.0

1990

4.2

1981

6.8

1972

5.1

1995

5.0

1999

5.0

1976

5.9

1975

5.9

1970

5.1

2000

7.3

1969

5.5

1966

6.0

1975

0.0

1998

9.0

1977

7.3

1961

0.0

1984

6.1

1986

5.8

1991

4.6

1993

0.0

1993

7.0