This example displays horizontal bars for the top five countries by projected 2020 population, using a React component that loads CSV data with D3’s `csv` utility. The bar lengths encode population values via a `scaleLinear`, while country names position each bar through a `scaleBand`. Rendering occurs as SVG `<rect>` elements, with React state managing the asynchronous data load and a temporary loading message. The chart uses dimensions of 960 by 500 pixels and defaults to a dark background from the page’s CSS.