This area chart shows household monthly expenses over time within a D3.js SVG. The code loads a CSV dataset and uses D3 v5 APIs like `scaleTime` and `scaleLinear` for axes, along with `line` and `area` generators with `curveBasis` smoothing. Styling includes a lime-colored semi-transparent area and blue line, with formatted tick labels for both axes. The visualization renders an interactive, static SVG with axis labels for “Months” and “Expenses.”