Year per 1,000 people 2003 5.829 2004 9.202 2005 9.431 2006 9.565 2007 9.693 2008 9.803 2009 9.935 2010 10.15 2011 10.45 2012 10.68 2013 10.96 2014 11.24 2015 11.85 2016 12.02 2017 11.9 2018 11.77 2019 19.35 2020 20.13 2021 20.53