1964

6.8

2007

7.5

1991

6.2

1997

0.0

1967

7.7

1936

0.0

1996

5.7

1989

6.6

1934

7.8

1965

7.4

2002

6.2

1994

5.2

1944

6.7

2003

6.6

1965

8.5

2001

6.9

1993

7.4

1938

0.0

1949

6.2

1941

8.0