Year modeled estimate, per 100,000 live births 2000 44 2001 38 2002 35 2003 34 2004 31 2005 15 2006 14 2007 13 2008 11 2009 10 2010 8 2011 8 2012 7 2013 6 2014 5 2015 5 2016 5 2017 5 2018 4 2019 3 2020 3