1958

6.7

1977

6.8

1983

4.6

1982

0.0

1939

5.7

1981

3.6

2016

6.6

1979

6.9

1959

5.0

1961

6.0

1983

7.0

1998

6.0

1987

5.1

1981

6.7

1989

6.5

1962

6.9

1977

6.3

1979

6.5