The dot plot shows the number of pretzels that were in each snack bag made for a party. A dot plot whose number line is labeled Number of pretzels. There are 2 dots above 14, 2 dots above 15, 4 dots above 16, 2 dots above 18, 1 dot above 19, 3 dots above 20, and 1 dot above 21. How many snack bags were made for the party? Enter your answer in the box