This area chart displays the number of Walmart stores in the US from 2011 to 2021. A smooth curve, generated using the `area()` and `curveBasis` functions, fills the space beneath the line, which uses `line()`, with a deeppink color. The chart is built with D3 v5, rendering to SVG, and loads its data from a CSV file hosted in a GitHub gist by SravanthiSilla.