This fork of d3.v5 visualizes car sales percentages in India from 2009 to 2019 as a smooth, basis-curved area chart. The SVG rendering combines an orange filled area with a black line stroke, using `d3.scaleTime` and `d3.scaleLinear` for axes and `d3.line` and `d3.area` generators. Data is parsed from a CSV via `d3.csv`, with year values formatted through `d3.timeParse`.