2000

7.1

2007

6.7

2005

6.2

1996

6.7

2008

6.2

1999

6.5

1944

7.2

2002

5.9

2003

6.0

1998

7.5

2001

6.6

1994

6.7

2003

6.3

2006

6.8

2005

7.7

2005

5.6

2004

7.6

2007

6.9

2004

6.0

2004

5.6