Definition
Per Capita Income is obtained by dividing the total family income by the total number of family members.
Similarly, two levels of per capita income decile were utilized - the national and regional per capita income decile. The per capita income of families for the whole country were arrayed in the national per capita income decile while in the regional per capita income decile, only those in the region. These are subsequently grouped into tens, with the lowest comprising the first capita income decile.