2009 7.3

2012 7.6

2017 6.4

2004 7.6

2010 6.4

2015 6.6

2017 7.2

2018 6.6

2017 7.6

2018 4.5

2010 5.7

2016 7.2

2012 6.6

2016 6.1

2006 6.8

2018 6.8

2010 7.3

2016 6.7

2011 6.5

2017 6.8

2013 6.9

2012 7.2

2001 7.1

2018 6.6

2015 5.8

2017 4.9

2008 4.4

2017 7.3

2017 6.3

2007 7.2