This bar chart displays the population of ten countries in 2020, using horizontal bars with countries labeled on the y-axis and population values on the x-axis. It is built with React and D3 v5, using `scaleBand` and `scaleLinear` to map data to SVG rectangles, with axes rendered as React components. The data is loaded asynchronously from a CSV via `useData` and `csv`, and the chart updates after the data arrives.