Year	per 1,000 uninfected population ages 15-24
1990	5.84
1991	7.98
1992	10.41
1993	13.15
1994	15.53
1995	17.35
1996	17.88
1997	17.19
1998	16.07
1999	14.79
2000	13.59
2001	12.59
2002	11.66
2003	10.92
2004	10.16
2005	9.78
2006	8.63
2007	7.66
2008	7.06
2009	6.74
2010	6.81
2011	6.5
2012	6.35
2013	6.14
2014	6.46
2015	6.7
2016	7
2017	6.99
2018	6.44
2019	5.84
2020	5.03
2021	4.97
2022	4.39