2014 6.4

2017 6.1

2017 5.2

2018 7.4

2011 7.6

1996 6.3

2018 6.2

2011 7.6

2018 5.8

2008 6.6

2018 4.9

1991 7.1

2013 6.2

2015 6.7

2018 4.7

2016 6.6

1995 6.4

2003 6.5

2003 4.6

2005 7.2

2018 6.3

2000 7.6

2018 8.0

1986 7.2

2000 7.0

2017 5.8

2017 7.2

1992 7.2

2017 5.6

2017 6.5