Year % of urban population 2000 16.2438747192872 2001 16.5225927594102 2002 16.801310799533 2003 17.080028839656 2004 17.3587468797789 2005 17.6374649199017 2006 17.9161829600247 2007 18.4860220474363 2008 19.0647801927462 2009 19.6524573959548 2010 20.2490536570618 2011 20.8545689760671 2012 21.4690033529711 2013 22.0923567877737 2014 22.7246292804745 2015 23.365820831074 2016 24.0159314395719 2017 24.674961105968