(a).

Occupation	(%)	95% CI	Education level/students	(%)	95% CI	Income level* (Rs.)	(%)	95% CI
Agriculture	26.2%	21.3–31.1	Higher studies	30.0%	22.3–37.4	0–2000	32.7%	27.7–37.6
Driver	62.2%	42.4–81.9	Higher Secondary	40.6%	31.7–49.5	2001–4000	39.2%	36.1–42.3
Government	76.6%	54.0–99.2	Upper primary	40.2%	35.1–45.2	4001–6000	39.9%	34.9–44.9
Labourer	75.1%	69.0–81.2	Primary	40.0%	33.3–46.7	6001–8000	44.3%	33.7–54.9
Housework	8.96%	5.2–12.8	None	42.2%	35.5–48.8	8000+	39.3%	28.6–49.9
Shopkeeper	57.2%	46.2–68.1
Student	22.6%	11.2–34.1

^*Household income is commonly estimated by food expenditure in Rupees/month.