subpopulations	2003			2011
subpopulations	$μ_{i}$	$c_{i}$	$C_{j} / μ$	$μ_{i}$	$c_{i}$	$c_{i} / μ$
Rural	0.492	0.457	0.937	0.605	0.518	0.879
Urban	0.244	0.031	0.063	0.320	0.071	0.121