Year	% of rural population
2004	2.4
2005	4.7
2006	1.7
2007	10.8
2008	12.7
2009	14.7
2010	43.2
2011	41.7
2012	40.7
2013	39.7
2014	38.9
2015	38.1
2016	37.3
2017	38.4
2018	35.3
2020	32.3
2021	30.6
2022	30.64