2010

7.6

2000

5.4

2013

5.9

2012

4.9

1992

6.7

1995

7.9

1993

6.7

2001

3.5

2013

2.8

2000

6.2

1998

2.0

2002

7.1

2011

8.2

2017

5.2

2010

5.1

2004

3.7