Year per 1,000 uninfected population ages 15-24 1990 6.9181629152787485 1991 7.50189574523193 1992 7.89938486135823 1993 8.068021695567577 1994 8.01765985372682 1995 7.781571721422469 1996 7.518892284950072 1997 7.244326333000629 1998 6.913319733990241 1999 6.561098585134392 2000 6.232207012250024 2001 5.86197879629104 2002 5.519979031959716 2003 5.193640059182233 2004 4.8864208766853094 2005 4.570979383452484 2006 4.307394685777722 2007 4.067231705901668 2008 3.8612262726226616 2009 3.6624346710773046 2010 3.4673065691058875 2011 3.2620660382742708 2012 3.0563613857715772 2013 2.842138657013339 2014 2.6106227005377516 2015 2.3887257859461424 2016 2.155024977540411 2017 1.908214994736997 2018 1.7217035793274857 2019 1.5424054095229678 2020 1.381015854160895 2021 1.230122858690275 2022 1.0669671230396507