1975

1.0

1997

6.2

1998

6.4

1934

0.0

2001

6.2

1973

3.2

1962

7.3

1965

6.3

2005

5.9

1997

6.5

1997

6.8

2008

0.0

1979

5.3

2004

5.5

1994

3.2

1961

4.6

1972

6.2

1975

5.7

1980

6.4

1998

6.2