1997

4.5

2017

4.3

1999

5.0

1995

5.7

2011

6.0

1994

1.0

2012

7.0

1994

7.0

1996

0.0

2004

6.1

2011

0.0

2011

5.8

1997

0.0

1998

1.0

2016

8.0