2000

7.1

2005

4.7

2016

7.8

1998

7.2

2001

4.7

2018

7.0

2006

7.9

2001

5.8

2018

7.2

2001

8.2

2000

6.6

1997

8.3

2002

7.2

1995

7.7

1993

8.4

2012

6.2

2007

3.7