Year per 100,000 people 1990 7.11265102735157 1996 6.60328092633087 1997 6.58316167129592 1998 7.04308103711231 1999 6.2340315568922 2000 5.76925854342345 2001 6.02508287283865 2002 5.79801373316455 2003 5.60054285116248 2004 5.63379885521489 2005 5.60984246458972 2006 5.64272526232516 2007 5.80240638864292 2008 6.48570602078594 2009 6.56994967190278 2010 6.78307785917094 2011 6.97875575109141 2012 6.84747710366189 2013 6.78736022004586 2014 6.37498019073104 2015 4.49638885369946 2016 3.98829476698892 2017 3.80581067106332 2018 3.75048673897451 2019 3.65125185059589 2020 3.73684938494969 2021 3.97878815425614