Year modeled estimate, per 100,000 live births 2000 40 2001 36 2002 36 2003 32 2004 33 2005 32 2006 32 2007 28 2008 30 2009 30 2010 25 2011 24 2012 24 2013 23 2014 23 2015 22 2016 22 2017 22 2018 22 2019 22 2020 21