2009

5.4

2000

3.8

2008

1.0

1981

7.3

2006

6.2

1988

0.0

2004

6.3

1997

6.7

2001

5.5

2008

0.0

2008

0.0

2014

7.4

1993

6.9

2000

6.2

2001

6.2

1956

7.2

2018

4.9

1999

6.8

2005

4.9

2000

5.7