The line graph illustrates the world oil production in several regions ( middle east, africa, north america, asia. Overall, the number of these four regions that producing oil showing upward trends. Units are measured million barrels per day.
To begin with, between 1960 and 1970, middle east slightly grew from 20 to around 25. While, asia only grew approximately at that time, which was the lowest among the other regions. Both middle east and asia in 1990 climbed to more than 40 for middle east, whereas around 15 for asia. Similarly, middle east rocketed to over 50 in 2000, which was the largest among the others. There was also a steady growth for asia at 20 in the last period.
Africa had a steady rise in the first two periods, which touch 30 from almost 20. Meanwhile, the number for north america shows a significant rise from 5 to around 18. Africa then dropped to more than 20 in 1980, however, north america climbed moderately to approximately 30 on the same period. After africa dropped, it then experienced a steady increase to the last period. North america also experienced the same as africa at over than 30.