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Population Indicator
Dayton McCall Needs Help
| Term | Definition |
|---|---|
| CBR | crude birth rate; the total number of live births in a year for every 1000 people alive in the society |
| CDR | crude birth rate; the total number of live deaths in a year for every 1000 people alive in the society |
| IMR | infant mortality rate; the total number of deaths in a year among infants under 1 year of age for every 1000 live births in a society |
| NIR | natural increase rate; the percentage growth of a population in a year, computed as the crude birth rate minus the crude death rate |
| TFR | total fertility rate; the average number of children a woman will have throughout her childbearing years |
| ZPG | zero population growth; a decline of the total fertility rate to the point where the natural increase rate equals zero |
| Stage 1 of DTM | very high CBR very high CDR very low NIR |
| Stage 2 of DTM | high CBR rapidly declining CDR very high NIR |
| Stage 3 of DTM | rapidly declining CBR moderately declining CDR moderate NIR |
| Stage 4 of DTM | very low CBR low or slightly increasing CDR zero or negative NIR |