The chart illustrates the frequency of eating at fast-food restaurants among U.S. citizens in 2003, 2006, and 2013.
Overall, the graph indicates a parabolic trend and fluctuation in the frequency over those three years.
The proportion of people who ate at fast-food restaurants every day was the least, with about 4% in 2003 and around 3% in both 2006 and 2013. Similar results were presented by those who had never eaten fast food, at 5% in 2003 and the same number in 2006 and 2013 with 4%. In contrast, those going there a few times a year were 13% in 2003, but 15% in both 2006 and 2013.
Furthermore, the number of U.S. citizens eating fast food once a week was the highest in 2003 and 2006, at around 31% and 33%, respectively, but in 2013, those going to fast-food restaurants once or twice a month were the most. Moreover, U.S. citizens who went there several times a week ranked third over the period, at around 17% in the beginning year of observation before increasing to 29% in 2006 and falling again to 16% in 2013.
In summary, by 2013, the number of people eating at fast-food restaurants once or twice a month was the highest, the same as those eating once a week in 2006.