This example visualizes projected delivery dates for Social Security numbers across multiple report years, using a smooth, curved line to show the relationship between report year and projected delivery time. The chart employs time-scaled axes on both dimensions, with a maroon line path rendered in SVG. Built with D3 v5, it uses d3.csv to load external data, d3.scaleTime for temporal scaling, d3.line with d3.curveBasis for the smoothed path, and d3.axisBottom and d3.axisLeft for labeled axes with grid ticks.