2019

6.2

2018

5.6

1988

3.5

1993

3.0

2006

6.0

2005

2.9

2009

4.9

2011

0.0

2014

0.0

1991

0.0

1987

2.0

2005

0.0

2014

6.8

2012

7.3

1997

7.3

1990

0.0

2005

4.8

2001

5.0

1987

0.0

1999

7.0

2006

4.1

2000

8.7

2018

8.0

2007

0.0