1974

5.5

1995

5.4

2023

6.5

1969

6.8

1977

1.0

1979

6.4

1962

7.9

1985

2.0

1997

4.5

2009

6.2

1973

8.5

1979

0.0

1981

0.0

1996

9.3

1978

0.0

1981

5.8

2010

7.6

2002

0.0

1981

0.0

2014

6.0