2008

3.7

1981

5.2

1996

6.5

2018

0.0

1997

4.5

1997

5.4

2005

1.0

2006

5.2

2000

4.3

1997

0.0

2012

1.0

2001

5.0

1994

7.0

2000

4.8

1999

5.5

2003

6.7

2001

6.2

2009

6.6

2004

6.1

2011

5.5

1995

4.6

1992

3.4