2008

0.0

1996

6.2

1997

6.3

2005

6.8

1998

4.3

1970

5.2

1959

5.0

1944

7.0

1958

5.9

1972

6.6

1990

0.0

1966

6.2

0.0

1961

6.6

1985

7.5

1984

6.4

1942

6.0

2002

6.3

2002

5.9

2003

6.8