2015 5.6

2017 5.7

2010 6.3

2009 6.2

2015 6.3

2015 5.4

2015 6.8

2013 7.1

2011 6.1

2018 5.8

2012 7.1

2015 5.5

2015 5.2

2009 5.8

1997 5.7

2018 7.8

2017 6.4

2009 5.6

2009 7.7

2014 6.4

2011 5.9

2015 7.1

2014 6.1

2009 6.7

2007 7.7

2014 6.5

2015 4.7

2010 6.1

2017 5.5

2018 6.3