Year modeled estimate, per 100,000 live births 2000 8 2001 8 2002 7 2003 6 2004 6 2005 5 2006 5 2007 5 2008 5 2009 5 2010 4 2011 4 2012 4 2013 3 2014 3 2015 4 2016 3 2017 3 2018 3 2019 3 2020 3