This heat map visualizes the average Uber fare amount for different passenger counts across the years 2009 to 2015, with color intensity indicating fare value (green shades for $9–13+) and a toggleable overlay that reveals exact dollar amounts. Built with the p5.js library, it loads a CSV dataset, aggregates fare averages per year and passenger count, and renders colored rectangles in a grid using the `rect` and `fill` functions. A legend on the right maps colors to fare ranges, while axis labels clarify that rows represent years and columns represent passenger counts.