1999

6.7

2004

6.9

2003

7.2

1967

6.6

1964

6.6

1997

6.9

1932

5.5

1988

6.6

1965

6.1

1976

6.0

1930

0.0

1996

6.5

1960

7.5

1948

6.6

1943

6.0

1944

0.0

1971

6.1

1972

6.0

1947

0.0

2002

5.5