Year per 100,000 population 2000 0 2001 0.2 2002 0.2 2003 0.3 2004 0.1 2005 0.1 2006 0 2007 0 2008 0.2 2009 0.5 2010 0.7 2011 0.8 2012 0.5 2013 0.3 2014 0.6 2015 0.6 2016 0.6 2017 0.6 2018 0.7 2019 0.7