| Expanding | Stable |
| This type of graph has a triangular shape, with a very wide base and pointed apex. | This type of population distribution shows a rectangular or squarish shape, with almost the same number of people in all age groups. |
| Each age group shows a bar less wider than that of the age group before it, indicating that more people at each higher group. | There is a slight taper at the top, which is perfectly natural, due to more deaths occurring among the elderly. |
| The large base shows a high birth rate, which is probably due to factors like a developing economy, ****, low levels of female education, and less awareness of birth control measures. | Such countries have a high life expectancy, where more people live to a ripe old age, due to better living conditions, medical facilities, and geriatric care. |
| Post-reproductiveReproductivePre-reproductive | Post-reproductiveReproductivePre-reproductive |
