1971

5.0

1997

5.4

1998

8.2

1997

4.8

1974

5.4

1978

6.3

2013

5.4

1983

6.4

1995

5.5

1998

5.2

1978

3.3

1980

1.0

1969

6.1

1992

5.9

2018

0.0

1998

4.7

1976

5.5

1984

7.2

1972

5.8

1974

5.6

1987

4.8

2000

6.6

1988

8.3

1977

7.7

1979

5.0

1995

0.0

1976

5.6

1986

0.0

1971

3.5