Year % of rural population 2000 15.9586268759571 2001 15.9586268759571 2002 16.3994717304747 2003 16.8403165849923 2004 17.2811614395099 2005 17.7220062940276 2006 18.1628511485451 2007 18.6036960030627 2008 19.0445408575804 2009 19.4853857120979 2010 19.9262305666156 2011 20.3670754211332 2012 20.8079202756508 2013 21.2487651301684 2014 21.6896099846861 2015 22.1304548392036 2016 22.5712996937212 2017 23.0121445482389 2018 23.0121445482389 2019 23.0121445482389 2020 23.0121445482389 2021 23.0121445482389