This area chart displays US cancer cases recorded annually from 2009 to 2022, using a smooth curve to highlight the overall trend in case counts over time. The visualization is built with D3 v5, employing `scaleLinear` for both axes, `area` with `curveBasis` to generate the filled path, and `axisBottom` and `axisLeft` for tick marks. Data is loaded from a CSV file via `csv`, with year and case values parsed as numbers. The SVG rendering includes styled axis labels and a filled area in a distinct color, with grid lines created through negative tick sizes.