1994

7.0

1995

8.5

1993

5.9

2010

6.3

2013

5.0

2005

6.9

2009

5.0

1994

4.5

2004

4.7

1999

4.2

1990

4.7

2006

8.0

1990

5.8

2001

0.0

1997

7.2