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