In MDCs, health care is a public service available at little or no cost (payed for by government programs), but in LDCs, private individuals must bay more than half of the cost of health care. ??? ??? ??? (15) Crude Birth Rate (CBR) The total number of live births in a year for every 1,000 people alive in the society. ??? ??? ??? (16) Crude Death Rate (CDR) The total number of deaths in a year for