2008

2.4

1978

6.8

1982

6.8

1989

3.2

2011

6.0

1986

4.6

2007

3.5

1997

4.7

1983

7.3

1982

7.1

1983

5.6

2009

6.1

2014

0.0

2010

3.4

1988

4.6