Year per 1,000 uninfected population ages 15-24 1990 0.9065149396670951 1991 1.6798861588883054 1992 2.821788456945035 1993 4.111947237820441 1994 4.991477931494286 1995 5.389364779966341 1996 5.219574540159556 1997 5.042308200434305 1998 4.680576558446719 1999 4.53088438330216 2000 4.329072536749818 2001 4.2760338046671285 2002 4.167701823294325 2003 4.0869632037234505 2004 4.075418930058665 2005 3.889857390800932 2006 3.87824633918982 2007 3.7408049686347558 2008 3.3993453761142467 2009 3.1568209903764037 2010 2.682893384652216 2011 2.4243145373334087 2012 2.6055844502533505 2013 2.7738559037081814 2014 2.7591870493266653 2015 2.4221426033501783 2016 1.9691707085915813 2020 1.1796392612045485 2021 1.174949376019085