Year national estimate, per 100,000 live births 1985 53 1986 57 1987 53 1988 52 1989 49 1990 47 1991 51 1992 47 1993 45 1994 50 1995 52 1996 47 1997 48 1998 43 1999 41 2000 38 2001 35 2002 34 2003 32 2004 24 2005 24 2006 22 2007 22 2008 21 2009 22 2010 17 2011 16 2012 12 2013 11 2014 11 2015 10