Ans: A census is generally held after every 10 years. The first census in the Indo-
Pak subcontinent was held in 1881. After the creation of Pakistan, census
has been held six times. The details are given below:
| Year of census | Population |
| 1951 | About 33.7 million |
| 1961 | About 42.8 million |
| 1972 | About 65.3 million |
| 1981 | About 84.2 million |
| 1998 | About 132.3 million |
| 2017 | About207.7 million |