Year per 1,000 uninfected population ages 15-49 1990 2.09942707882907 1991 2.48917473960782 1992 2.72362488999628 1993 2.93030711049132 1994 2.89895941907205 1995 2.78755751620006 1996 2.67809832340653 1997 2.56893274454193 1998 2.01582416969414 1999 1.91455498542715 2000 1.87853109543584 2001 1.85141240251267 2002 1.79172148155167 2003 1.78481323907413 2004 1.67303245975212 2005 1.59619511635446 2006 1.49324713490283 2007 1.44864894940774 2008 1.36519948442095 2009 1.35065923431259 2010 1.33744489984839 2011 1.33804650047285 2012 1.2682621499806 2013 1.26213356511838 2014 1.25534509205795 2015 1.24108951166768 2016 1.24124717543775 2017 1.21601722557036 2018 1.18332169191845