2002

7.1

2005

6.6

2000

6.4

2004

6.7

2006

6.7

2013

0.0

2006

5.9

2000

5.9

2002

6.1

1997

6.2

1984

6.8

1996

5.6

2005

6.3

2004

6.6

1986

7.6

2002

6.1

1988

6.8

2003

7.4

1988

6.6

2006

6.4