Year per 1,000 uninfected population ages 15-49 1990 3.2443927833021746 1991 3.366719934033505 1992 3.3490666120135395 1993 3.2581094128828765 1994 3.1194395942933655 1995 2.930910487892773 1996 2.78205493701702 1997 2.665901296229166 1998 2.5221699870145424 1999 2.369809197659505 2000 2.2617885968506144 2001 2.118409873607332 2002 1.9989802916393138 2003 1.892188696379137 2004 1.7891893972251511 2005 1.6942530631582466 2006 1.616976730171143 2007 1.5477682721015715 2008 1.4916443220188733 2009 1.4322420055460672 2010 1.3827376333305776 2011 1.3507564348104173 2012 1.3028499285913921 2013 1.2347564823128516 2014 1.1554626294697499 2015 1.0756950816315063 2016 1.010400719742408 2017 0.9263339362132157 2018 0.8557836950257642 2019 0.7751694558320025 2020 0.6887803920893455 2021 0.6154016106391602 2022 0.5315043850015218