This example displays a green area chart of United States population from 1995 to 2020, with years on the x-axis and population on the y-axis. The visualization filters a CSV dataset for the United States and maps yearly values using `d3.scaleBand` and `d3.scaleLinear`, then renders the area shape with the `d3.area` function. Axes are drawn using `d3.axisBottom` and `d3.axisLeft`, with rotated year labels and manually added title and axis text. The result is rendered as an SVG element with a width of 900 and height of 450 pixels.