2018

6.7

1990

5.6

1992

4.6

2000

8.2

1992

6.1

2003

6.5

2002

6.6

2004

0.0

2011

5.4

2008

3.5

1999

5.8

2012

5.0

2011

5.5

2009

6.2

2009

6.2

2004

5.3

2020

6.7

1988

6.1

2014

5.6