This interactive bubble chart compares unemployment rates over time across ten selected U.S. states. Each circle’s position encodes the year and unemployment percentage, while its size and color map to the rate and state, respectively, using d3.scaleLinear, d3.scaleOrdinal, and d3.schemeCategory10. The visualization includes a legend and interactive tooltips, rendering SVG elements with axis functions d3.axisBottom and d3.axisLeft. Data comes from the @oabouhas/unemployment package.