The bar chart illustrates the number of gorilla population in the wild in seven countries in Africa continent between 1990 and 2015.
Overall, Uganda recorded the largest number of gorilla in both years, even though it saw a decline. A similar downward trend was observed in Central African Republic and Rwanda. In contrast, the remaining four countries experienced a slight rise in their gorilla population.
In 1990, Uganda had the biggest number of gorilla population, accounting for approximately 9,000. However, by 2015, the population dropped to 7,500. Central African Republic ranked second, with the population registering 5,500 in 1990. Similar to Uganda, the figure for Central African Republic saw a drop, reaching 4,500 by 2015. Meanwhile, Rwanda had the widest gap, in which the population of gorilla in 2015 (1,000) was more than half as many as it was in 1990 (2,500), making it the country with the smallest population.
In comparison, gorilla population in Nigeria in 1900 was slightly lower than it in 2015, 2,550 compared to 2,600 respectively. Angola and Cameroon had a similar trend, increasing marginally by 50, making it 1,400 and 1,450 respectively. Gabon, which initially had the least number of gorilla, also recorded growth in the gorilla population, rising from 1,200 to 1,250 over a 15-year period.