2007

5.1

2006

6.5

1999

7.2

2005

6.7

1929

6.6

2004

7.0

2002

7.3

1982

0.0

1941

5.8

1994

6.9

1972

7.1

1963

1.0

1988

6.1

1974

5.0

2007

6.3

2003

7.2

1935

7.4

1965

6.8

1963

7.2

2006

6.3