2006 6.2

2011 7.3

1996 7.4

2021 5.6

2012 6.8

2004 6.4

2015 6.3

2018 7.0

2016 6.6

2012 7.1

2007 7.2

2015 6.7

2010 5.8

2012 7.4

2016 6.2

1989 8.2

2012 6.8

2006 7.4

2017 6.7

2001 6.3