1966

6.4

1999

4.4

2005

5.6

0.0

1995

6.9

1967

0.0

1926

7.9

1963

7.2

1955

5.3

1992

0.0

1980

6.1

1994

7.5

1935

6.4

2010

5.9

1998

5.8

2008

6.9

1924

7.7

2008

7.2

1951

6.1

1946

5.7