Year per 1,000 uninfected population ages 15-49 1990 4.318297190516975 1991 4.508669362889113 1992 4.495462601202936 1993 4.316869235351314 1994 4.047207879478025 1995 3.719989681676688 1996 3.458248935556757 1997 3.2283751087430694 1998 3.00810198161527 1999 2.797424329892537 2000 2.6186662931361435 2001 2.4300803943087286 2002 2.269833623583916 2003 2.124448395511371 2004 2.0039928377957716 2005 1.879978311369241 2006 1.7794400373131498 2007 1.6907164312816318 2008 1.6157963119882355 2009 1.5478483975968216 2010 1.4871700001577048 2011 1.4269001745799255 2012 1.3671850677969088 2013 1.3001642675221452 2014 1.219165062888762 2015 1.1327690460736908 2016 1.049566179606111 2017 0.9513120395396145 2018 0.8722764407969623 2019 0.7925282582995943 2020 0.7046246814957414 2021 0.6324767029439123 2022 0.5480614882228522