This interactive line chart visualizes unemployment rates over time for multiple countries between 1991 and 2021, using data loaded via `d3.csv` from a GitHub repository. Each country appears as a colored line, with dashed grid lines and rotated x-axis labels to improve readability. The visualization uses `d3.scalePoint`, `d3.scaleLinear`, and `d3.line` within an SVG, and includes a hover tooltip that displays country-specific values. The chart animates by redrawing paths dynamically, with colors assigned from `d3.schemeCategory10`.