Year	% of urban population
2000	2.6
2001	2.5
2002	2.4
2003	2.3
2004	2.2
2005	2.1
2006	2.1
2007	2.1
2008	2
2009	2.1
2010	2
2011	2.05
2012	2.1
2013	2.2
2014	2.3
2015	2.4
2016	2.5
2017	2.7
2018	3
2019	3.3
2020	3.55
2021	4
2022	4.3