1959

7.8

1963

5.5

1968

0.0

1985

7.1

1975

0.0

1990

6.9

1961

8.0

1972

0.0

1977

6.3

2007

5.9

1982

0.0

1933

5.4

1998

6.7

1965

5.0

2018

7.4

1954

7.2

1971

7.0

1971

8.0

1967

0.0

1968

7.0