2000

6.0

2011

6.7

2001

5.6

2006

4.9

2011

4.2

1998

5.6

2000

7.5

2013

6.8

1992

7.4

2003

2.5

2004

1.5

2004

6.2

2007

6.7

1999

8.7

2001

5.9

2000

4.8

2001

7.2

2010

7.7

1994

3.9

2001

4.8

2002

7.1

2004

5.7

1991

7.1

2002

7.2

1995

7.7

1987

4.2

2001

0.0

2009

5.0