1931

7.2

1977

0.0

1964

0.0

1973

0.0

1958

7.6

1984

8.0

1998

7.3

2003

6.0

1929

6.6

1978

7.4

1953

7.7

1981

0.0

1933

0.0

1992

7.5

1929

7.5

1993

6.9

2018

6.7

1968

2.0

1998

6.0

1987

6.4