1996

1.0

2020

6.8

2003

6.1

2002

5.8

2013

6.5

1996

6.9

2016

5.3

2008

7.6

2009

8.0

1992

5.7

1994

7.0

0.0

2000

7.2

1997

6.0

1992

6.3