Figure 3.

Trends in food purchases (% expenses) by outlet type according to the educational level of the head of the household: ENIGH 2006–2020. (A) Without formal education, (B) primary school, (C) high school, and (D) higher education. Informal outlets include street markets, street vendors, and acquaintances (red and orange); mixed outlets include small neighborhood stores, public markets, low-budget restaurants, and specialty stores (green); formal outlets include supermarkets, restaurants, cafes, bars, and chain convenience stores (purple).