the graph below shows the amount of electricity produced from different energy sources to supply the city of New York between 1980 and 2000

The line graph depicts the quantity of electricity created from 3 sources of energy to serve people of New York from 1980 to 2000.
It can be considered that the amount of energy used on natural gas grew significantly over the period shown. Whereas, the production of petroleum saw a highest quantity in each year shown.
In 1980, petroleum was pruduced most in NewYork, at about 350 million kWh, then it turned to be surged dramatically in the next 5 years, by around 250 million kWh. 5 years later, the creation of this sources stood at the same quantity for the 1980’s, and it increased significantly to the end of 2000, reach a peak of 710 million kWh.
The amount of natural gas made in New York started at about 100 million kWh and still kept remain unchanged in 1985. However, the natural gas energy was used more and more, the figure of this energy climbed considerably, end at about 500 million kWh. By contrast, the coal energy production in New York increase mimimally in 5 years begin, and then there was a slight fall in the number of coal energy, end at the lowest figure, at about 200 million kWh