Year per 1,000 uninfected population ages 15-24 1990 3.0429295526255538 1991 3.178361456385157 1992 3.187250323460935 1993 3.1194222740234405 1994 3.0063997776670894 1995 2.8461321070980232 1996 2.704223978045933 1997 2.605918780795704 1998 2.4761822314385475 1999 2.3391819005121004 2000 2.2416826443577706 2001 2.1087892538785264 2002 1.9934200433015385 2003 1.893227564916727 2004 1.7947052361282931 2005 1.7025453004175368 2006 1.6287203491289715 2007 1.5631529614955084 2008 1.5101170763437421 2009 1.453093206640069 2010 1.4063307580273614 2011 1.3706918374310673 2012 1.3243110984347393 2013 1.2554000945961465 2014 1.1738617811841776 2015 1.0887077013981001 2016 1.0204863833958095 2017 0.9453519624730194 2018 0.8820868412700085 2019 0.8091007123878061 2020 0.7278761126972116 2021 0.6541961584410089 2022 0.564938811346301