Year per 1,000 uninfected population ages 15-24 1990 0.01440380158972118 1991 0.014551262731951812 1992 0.01867649056263755 1993 0.022920353312036245 1994 0.023740056005421242 1995 0.03057298700645887 1996 0.03145379038084123 1997 0.03302863090566259 1998 0.040208623305404353 1999 0.04617218067349275 2000 0.04146705695545678 2001 0.04852442120177749 2002 0.039399590216019846 2003 0.0394020910602996 2004 0.03952655579079508 2005 0.04050963813210252 2006 0.04041443969094666 2007 0.04059351021343814 2008 0.041069692918915476 2009 0.04055170190283859 2010 0.04072705366154882 2011 0.039519196083409584 2012 0.04355774985485617 2013 0.04327499827399825 2014 0.04262841616054516 2015 0.04348676037157993 2016 0.04301807108832918 2017 0.03950017980840707 2018 0.039096602034326564 2019 0.04281971317913006 2020 0.04336534605385077 2021 0.042943167022606865