A multi-line chart displays tourist visitor counts for five US states—California, Texas, Florida, New York, and Illinois—from 2011 to 2021. Data is loaded via `d3.text` from a gist and parsed into per-state value arrays. The visualization uses D3 v7 to construct SVG paths with `d3.line`, linear scales, axis generators, and a drawn legend, with each state colored using `d3.scaleOrdinal` and `d3.schemeCategory10`.