This area chart visualizes deaths in the USA from 2012 to 2022, using a smooth curve to show yearly trends. Built with D3 v5, it renders an SVG with a blue-filled area beneath a black line, using `scaleTime` and `scaleLinear` for axes. The chart includes grid lines, axis labels, and a legend-free design, with data loaded from a CSV via `d3.csv`. The `area` and `line` generators apply `curveBasis` for smoothing.