1989

6.0

1971

3.5

1981

5.5

1971

3.2

1982

7.5

1979

6.9

1976

6.2

1963

5.8

1978

6.0

2015

7.0

1974

6.8

1974

7.5

1973

3.9

1957

5.6

1954

5.0