1992

3.8

1997

7.6

1993

2.0

2001

1.0

2008

6.8

2017

0.0

2011

4.3

2016

7.1

2008

4.0

1994

6.5

2006

5.1

2008

4.1

1999

6.0

2022

1.0

2001

4.0

1982

9.0

2008

6.2