What is the chance of a Nigerian (18+) being called to be polled?

We make thousands of calls weekly to conduct our polls. Individual Nigerians have the same chance of being called as anyone else living in Nigeria. According to the World Fact Book, Nigerian population is estimated to be about 1203 million+ (July 2018 est.). According to Nigerian National Population Commission (NPC), about 52%2 of Nigerian population are adults (18+) and an estimated number of adults in this age-group as at July 2018 is about 105.80 million. Therefore, the chance of a Nigerian being called in any poll is only about 1 in 105,800.