1973

5.4

1971

7.8

1984

7.3

1981

7.0

1984

0.0

1972

5.5

1977

8.3

1980

6.0

1984

6.0

1980

6.7

1976

8.0

1980

7.0

2016

6.9

1995

5.7

1979

4.8

1997

7.0

1981

7.6

1978

7.8

1996

7.2

2007

6.1