2008

3.7

1981

5.4

1996

6.4

2018

0.0

1997

4.5

1997

7.7

2005

1.0

2006

5.2

2000

2.8

1997

0.0

2012

1.0

2001

5.0

1994

7.0

2000

4.8

1999

5.5

2003

6.2

2001

6.1

2009

6.1

2004

6.0

2011

5.5

1995

4.3

1992

3.4