2021

6.7

2013

6.4

2009

6.7

2017

6.3

2013

7.4

2012

7.1

2018

5.9

2007

4.9

2011

6.2

1998

7.0

2010

7.3

1993

4.3

2020

6.1

2013

5.3

2015

5.5

1995

7.5

2003

9.7

2009

6.8

1991

7.1

2011

7.2