2000

0.0

1995

7.2

1992

7.3

2017

8.3

2002

8.0

2004

0.0

1991

6.6

1998

0.0

2006

6.5

2010

7.0

2006

7.0

2012

6.9

2001

6.5

1996

9.5

2006

8.0

2009

5.5

2000

0.0