2014 7.7

2006 6.4

1995 6.2

1991 8.6

2001 6.5

2016 6.1

2017 6.8

2016 8.0

1953 7.2

2014 6.9

2007 7.0

1991 7.0

2013 6.6

2014 7.0

1997 7.2

2001 7.6

2000 7.0

2015 7.1

2014 5.8

2014 6.1