The accompanying time-series plot of movie box office totals (in millions of dollars) ov...

The accompanying time-series plot of movie box office totals (in millions of dollars) over 18 weeks of summer for both 2001 and 2002 appeared in USA Today (Sep tem ber 3, 2002):

Patterns that tend to repeat on a regular basis over time are called seasonal patterns. Describe any seasonal patterns that you see in the summer box of fice data. Hint: Look for patterns that seem to be consistent from year to year.