2004

7.3

2000

6.5

1972

6.9

1930

4.9

1998

7.3

2003

6.0

1933

0.0

1972

7.4

1975

10.0

1989

7.2

1996

7.3

1929

7.5

1990

7.3

1987

6.4

2008

7.0

1931

7.3

1981

7.2

1929

4.5

1993

6.9

1978

6.6