1995

4.2

1996

6.2

1996

6.0

2004

10.0

1997

7.4

2004

4.6

2001

5.4

2003

4.3

2017

6.5

2003

0.0

1988

5.7

1998

4.0

2000

3.7

1986

6.0

2005

6.1

2014

7.5

2011

6.6

2004

9.0

2001

6.6

1999

5.5

1988

6.2