2007

6.8

2006

5.5

2007

5.7

2008

6.5

1993

6.9

2003

4.1

2007

7.3

2008

5.1

2001

6.3

2003

6.1

2009

0.0

1982

6.4

1992

5.3

1961

7.8

1972

7.5

2006

6.3

1998

7.1

2003

6.6

1999

0.0

2023

2.0