Year	per 1,000 uninfected population ages 15-24
1990	9.69
1991	10.24
1992	10.76
1993	10.67
1994	10.26
1995	9.64
1996	8.9
1997	8.07
1998	6.9
1999	6.23
2000	5.61
2001	5.21
2002	4.68
2003	4.26
2004	4.17
2005	3.76
2006	3.62
2007	3.51
2008	3.22
2009	2.99
2010	3.01
2011	2.94
2012	2.89
2013	2.93
2014	2.76
2015	2.82
2016	2.57
2017	2.45
2018	2.54
2019	2.43
2020	2.34
2021	2.49
2022	2.24