2019

6.6

2000

6.2

2014

6.4

2011

7.0

2005

8.1

2018

5.6

2004

7.4

2015

7.1

2002

7.9

1995

7.3

2001

8.0

2016

7.0

2001

1.0

2007

6.4

2004

7.8

2009

5.6