2002 7.5

2011 7.8

2000 7.4

2000 8.2

2014 7.7

1978 7.7

2013 7.5

2014 6.4

2013 7.8

2001 6.4

2004 7.1

2009 6.5

2018 7.8

2015 6.4

2001 8.2

2004 6.8

2017 6.5

1984 7.4

2003 7.7

2016 5.9