2015

7.9

2003

7.8

1998

6.5

2016

5.4

1999

6.4

1995

7.3

2010

6.8

2001

3.9

2013

7.5

2003

7.1

2001

0.0

2005

7.9

2004

4.8

1999

8.2

1993

8.4

2012

6.6