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