Year % of rural population 2000 18.45 2001 19.6 2002 21.1 2003 22.5 2004 24.2 2005 26.2 2006 28.2 2007 30.3 2008 32.7 2009 35.1 2010 37.6 2011 40.2 2012 42.9 2013 45.6 2014 48.2 2015 50.8 2016 53.5 2017 56 2018 58.3 2019 60.6 2020 62.7 2021 64.75 2022 66.9