2003

6.6

2005

5.1

1997

3.7

2002

6.0

2006

4.8

1999

6.6

2002

5.4

2001

1.3

2024

0.0

2006

5.8

2007

6.1

1998

5.9

2007

5.6

1996

5.6

2003

6.5

1991

5.8

2001

7.0

1984

6.6

2008

6.5

2006

5.9