This example displays a line chart of US auto sales from 2005 to 2022, using applicant income on the x-axis and loan ID on the y-axis, with red strokes marking the trend. Built with D3 v5, the code uses `csv` to load external loan data, `scaleTime` and `scaleLinear` for axes, and `line` to generate the path. The SVG rendering includes labeled axes, a title, and gridlines via `axisLeft` and `axisBottom`.