2015

6.7

2000

10.0

1998

5.7

2004

4.6

2016

6.0

2001

4.9

1999

2.0

1988

6.2

2010

5.7

2013

6.3

1997

0.0

1997

5.5

2001

7.2

2001

3.3

2009

9.0

2022

0.0