2004

7.8

1987

7.3

2002

6.6

1961

7.6

1982

6.4

2006

5.8

1940

7.9

1994

6.8

2000

7.1

1999

7.4

2005

4.5

1958

8.2

1961

7.5

1964

7.6

2001

6.0

2004

6.3

2001

7.9

1955

7.3

2004

6.1

1988

5.0