2011 7.3

2017 6.6

2009 6.5

2003 6.0

2011 7.7

2000 7.3

2018 5.8

2006 7.5

2013 4.8

2016 6.8

2006 6.1

2020 5.7

1995 7.1

2013 5.7

2005 7.6

2011 6.2

2006 7.1

2013 6.7

2019 7.3

2015 7.1