Table 1.

Sample frame structure for the research.

S/No	STATE	CITY	1991 Census Figure	Projected Population 1991–2001	Projected Population 2002–2012	Projected Population 2013–2019	Number of Households = total population/6
1	Nasarawa	Lafia	240,656	329,756	451,845	563,315	93,996
2	Niger	Minna	230,169	315,387	432143	538748	89,791
3	Kogi	Lokoja	82,483	113,018	154,857	193,060	32,177
	Total		553, 308	758,161	1,038,845	1,295,123	215,964

Source: Author's modification of 1991 census figure, 2022