Year per million people 2007 299.17832 2008 300.02984 2009 392.06605 2010 334.8388 2011 299.97302 2012 312.4554 2013 324.7486 2014 350.75375 2015 420.25773 2016 430.94926 2017 410.84382 2018 412.03292