2003

7.4

2002

6.6

2011

1.0

2006

7.7

2006

7.1

1999

5.4

2005

7.0

2013

0.0

1997

0.0

2013

4.9

2016

8.6

2015

6.8

2016

0.0

2017

4.5

2002

5.9

2017

7.3

2025

6.0

2000

2.0

1990

5.5

1997

6.5