The provided graph displays a comparison of the frequency of USA citizens eating at fast-food restaurants from 2003 to 2013. Overall, it shows that people were far more likely to eat either once a week or at least once a month than to eat every day or not at all.
Observing the data, it becomes apparent that the frequencies presented little variation over the years. For all the years reported, less than 5% of the people never went or went on a daily basis; about 15% did visit several times a week or a few times a year; and over 25% did visit once a week or once or twice a month.
The greatest change was in 2013, when the number of people visiting once or twice a month increased by about 10%, which seems to come from those who, in the previous year, reported a frequency of several times a week or once a week, as both were reduced by about 5%.