This line chart shows global unemployment rate trends from 1991 to 2023, plotting yearly averages calculated from monthly or quarterly data grouped by year. The visualization uses d3.csv to load data from a Gist URL, d3.group with d3.mean to aggregate values per year, and d3.scaleLinear with d3.line and curveMonotoneX to render a smooth SVG path. Axes are generated with d3.axisBottom and d3.axisLeft, including percentage formatting for the y-axis and rotated tick labels for the x-axis.