The country's population in 1994 was 76 million in 1998 it was 81 million estimate the population in 2016

Between 1994 and 1998 the population increased by 5 miliion, approximately 1 1/4 million a year.

2016 - 1998 = 18 years at 1 1/4 million a year = 22 1/2 million

Estimate therefore is: 81 + 22 1/2 = 103!/2 million