Year per 100,000 population 2000 3.476406376513283 2001 3.5440998811489126 2002 3.436052377867501 2003 3.3393687235367358 2004 3.3072853869947894 2005 3.2591351869796625 2006 3.3181897716748727 2007 3.304769903841735 2008 3.245494019446354 2009 3.182605186338278 2010 3.179249170652602 2011 3.0783567634065565 2012 3.0312353872709035 2013 2.964603472285604 2014 2.9067380786132455 2015 2.7958257649785683 2016 2.8362310281884167 2017 2.7511181748148053 2018 2.695656959734197 2019 2.5950792069260413