1998

7.3

2006

7.8

2014

5.8

2004

5.7

2017

4.8

2001

5.1

2013

4.3

2003

5.7

1987

6.9

0.0

2005

6.7

1998

5.0

2020

8.0

1986

6.5

2000

6.4

2009

7.2

2018

5.6

2021

6.6

2010

3.6

1983

3.5