This area chart displays the U.S. Monthly Consumer Price Index (CPI) over time, with the shaded region emphasizing the trend and magnitude of inflation. The visualization uses D3 v5’s `scaleTime`, `scaleLinear`, `area`, and `curveBasis` to generate a smooth, filled path. Axes are created with `axisBottom` and `axisLeft`, and data is loaded via `csv` from a provided URL. The SVG rendering includes labeled axes and a title, with the area fill styled in maroon.