Hello. I am not quite a newbie to ArcGIS but I have tons to learn. I have an Excel table showing how often calls to a hotline were made from zip codes in a city. The table only has a column of zip codes and a column of calls from the zip code. I have a map with the boundaries and zip codes. How can I use the table I've described to visually illustrate the frequency of calls from zip codes? I appreciate any assistance. Thank you!