This area chart displays the growth of Android users from 2008 to 2017. The visualization uses a smooth curve to draw both the line and the filled area beneath it, with axes labeled "Year" and "Users". Built with D3 v5, the code leverages `scaleLinear`, `line`, `area`, and `curveBasis` to generate the SVG paths. Data is loaded from a CSV file via `csv`, with the y-axis formatted using `format('.3s')`.