Year modeled estimate, per 100,000 live births 2000 13 2001 13 2002 13 2003 12 2004 11 2005 10 2006 9 2007 8 2008 8 2009 7 2010 6 2011 6 2012 6 2013 6 2014 5 2015 5 2016 5 2017 5 2018 4 2019 4 2020 4