1958

6.7

1958

7.2

1998

7.2

1982

6.9

1948

6.0

1978

7.2

2000

7.1

1964

6.6

1970

5.8

1935

6.8

1981

3.8

2006

6.7

1983

6.9

1989

7.6

1971

6.6

2001

6.4

1949

6.9

1934

6.9

1982

6.9

1979

5.4