1980

6.6

1999

7.8

2009

10.0

1994

7.8

2008

1.0

2000

3.0

1988

4.6

2011

0.0

1981

4.4

2004

8.6

1983

5.5

2003

6.4

2009

7.9

2013

7.3

2005

7.7

2004

8.5

2007

7.0

2003

7.2

2009

8.0

1987

5.2

2015

7.5

2011

7.5

2010

7.1

2017

7.2

2003

7.8

2008

7.8

1999

8.2

1997

5.1