2009 7.5

2004 7.1

1989 7.8

2018 6.3

1968 8.5

2011 8.1

1998 6.7

2009 7.2

2015 6.8

2006 8.0

2010 8.0

2007 8.0

2017 7.3

2019 7.0

2015 4.3

2010 8.0

2004 6.9

2019 7.7

2010 6.4

2012 6.6