2013 7.0

2017 7.4

2010 7.3

1999 7.3

2014 7.1

2011 7.4

1994 7.5

2007 7.1

2015 7.3

2015 7.2

2002 7.1

2017 6.7

2008 8.1

2008 6.5

2008 7.0

2005 6.8

2012 6.2

2017 6.6

1995 8.0

2000 6.4