The graph shows the crude oil production output of Angola from 1980 to 1999. Units are measured in thousands of barrels per day. Summarise the information by selecting and reporting the main features, and make comparisons where relevant. Write at least 150 words.

The bar chart illustrates Angola’s crude oil production output over the period from 1980 to 1999, quantified in thousands of barrels per day. Overall, the data reveals a significant upward trend in crude oil production throughout the specified years, with noteworthy peaks and a plateau towards the end of the period. In 1980, Angola’s crude […]