2017 6.9

2011 7.5

1996 6.5

2020 5.7

2011 6.2

2018 6.1

2011 7.0

2014 6.3

2017 6.7

2014 6.2

2008 7.6

2010 6.1

2016 5.2

2018 7.0

2001 6.9

2018 7.0

2018 6.5

2014 6.8

2014 7.9

2007 6.3