Year per 1,000 uninfected population ages 15-24 1990 0.4421884764878826 1991 0.5128125691875386 1992 0.598672907447526 1993 0.6510777605861665 1994 0.6901236334531178 1995 0.7267067726033881 1996 0.7378823315291722 1997 0.7525541861327484 1998 0.7686691856783978 1999 0.7806701242760492 2000 0.7862696274482479 2001 0.7754531840105775 2002 0.7750743148413766 2003 0.778170912793641 2004 0.7558971108902004 2005 0.7309693194260243 2006 0.7152513534776472 2007 0.7120600002339952 2008 0.712651341283849 2009 0.7044026752573744 2010 0.6996224667129217 2011 0.6760910236681593 2012 0.6542914837876265 2013 0.6207026585112602 2014 0.5936691711292513 2015 0.5766225974043309 2016 0.5643898767329955 2017 0.5513039367942374 2018 0.5415363835851272 2019 0.55669374401615 2020 0.5183514925145026 2021 0.5191398215634818 2022 0.5221646843388668