2003

6.7

1995

0.0

1998

7.0

2012

9.0

2003

6.0

2010

0.0

2002

6.0

1997

0.0

2010

6.7

2013

0.0

2003

5.9

2001

6.0

2006

7.1

2015

6.7

1994

5.5

1991

6.8

1973

4.5

2006

5.5

2009

7.3

2017

5.7