1997

0.0

2008

4.6

2015

6.8

2007

7.5

2002

7.7

1994

5.7

1999

2.5

2006

4.0

1996

6.7

1993

6.7

1998

0.0

1997

5.0

2005

0.0

1999

3.0

2000

5.3

2014

4.0

2007

5.0