1992

5.7

1958

6.9

1979

6.8

1981

6.0

1934

7.3

1978

5.6

1980

5.3

2002

8.7

2011

4.0

1983

6.2

1977

6.9

1974

7.2

1975

6.0

1950

6.7

1979

7.1

1984

6.5

1979

5.7

1987

7.2

1972

7.1

2010

7.1