Year per 1,000 uninfected population ages 15-49 1990 3.04735321967398 1991 3.17861617285657 1992 3.17051068305919 1993 3.05715179465135 1994 2.91304250886963 1995 2.75324350189169 1996 2.61620410696992 1997 2.49322535164716 1998 2.35538914867082 1999 2.2168192854894 2000 2.09183311409694 2001 1.95794221852833 2002 1.83284592410338 2003 1.73778611159849 2004 1.64403831628565 2005 1.56142640938138 2006 1.4825687923081 2007 1.42497128291467 2008 1.37884920559889 2009 1.32719328982299 2010 1.27824681483642 2011 1.23325534996242 2012 1.19326476783221 2013 1.13319720622365 2014 1.09359039516082 2015 1.03832962073395 2016 0.996664657541512 2017 0.948789458085806 2018 0.90217659465815