Year per 1,000 uninfected population 1990 1.888236328616537 1991 1.9845272891886319 1992 2.0073216210947327 1993 1.9884532203005436 1994 1.9400552022407744 1995 1.8617781809099567 1996 1.7970294054306133 1997 1.7466196119857418 1998 1.6766004210030714 1999 1.598760296094917 2000 1.537558123557279 2001 1.456190121101903 2002 1.3835594279654961 2003 1.319334093284269 2004 1.2497973236299147 2005 1.1818490436329296 2006 1.1234254329156441 2007 1.0557374315609793 2008 1.0032298556680541 2009 0.9492718798278117 2010 0.9149544872120543 2011 0.870415020176358 2012 0.8221559994605767 2013 0.7784456427922337 2014 0.7299329554590566 2015 0.6802964718617164 2016 0.6450220459835119 2017 0.5875326971025598 2018 0.5389732467823743 2019 0.48990767575254357 2020 0.4377563381049103 2021 0.39362530646980054 2022 0.34334393973428623