The given line graph illustrates the per capita consumption of butter and margarine in the United States over a forty-year period between 1980 and 2020.
Overall, in 1980, margarine consumption was considerably higher, at around 10 lbs per person, while butter intake was lower at approximately 5 lbs. However, by 2020, the situation had reversed, with butter becoming more popular at about 6 lbs, whereas margarine declined significantly to only 2 lbs.
Looking at the details, in terms of butter, its consumption experienced a slight fall from nearly 5 lbs in 1980 to around 4 lbs in 1990. After that, it gradually increased, reaching 5 lbs in 2010, and continued to rise by 1 lb to stand at 6 lbs by 2020.
By contrast, margarine underwent a dramatic decrease throughout the period. It dropped sharply from about 10 lbs in 1980 to nearly 3 lbs in 2010, before declining further to just 2 lbs in the final year.
