2017

4.8

1986

6.5

2005

6.7

1998

5.0

1987

6.9

2003

5.7

0.0

1999

7.1

2006

7.8

2004

5.7

1998

7.3

2014

5.8

2013

4.3

2000

6.4

2018

5.6

2017

5.7

2009

7.2

2020

8.0

2001

5.1

1983

3.5