1997

3.3

1997

7.3

2001

4.8

2003

4.6

1998

0.0

1998

6.6

2011

4.7

2014

4.6

2016

7.9

2013

4.0

2003

7.2

1999

7.7

1993

6.0

1996

7.8

2010

4.7

1993

3.0