2003

5.4

1999

6.4

1967

6.9

1955

5.3

1932

0.0

1976

0.0

1997

6.5

2004

6.7

1978

5.8

1950

3.0

1976

7.0

1970

6.6

1972

7.3

1992

6.6

1932

6.0

1971

7.1

1994

6.8

1990

7.3

1970

5.5

1987

6.4