This example displays the top 10 most populous countries as horizontal bars representing their 2020 female population, rendered as an SVG with no axes or labels. The code uses React hooks to load data from a CSV provided by the United Nations World Population Prospects 2019, parsing the population values with `d3.csv`. It scales the bar widths using `scaleLinear` and positions them with `scaleBand`, while React's `useState` and `useEffect` manage the asynchronous data fetching and rendering.