A horizontal bar chart displays the 2000 population estimates for ten countries from a CSV file, with the United States likely appearing as a leading bar due to its large population. The chart is built with React and D3 v5, using `scaleBand` for the categorical y-axis, `scaleLinear` for the continuous x-axis, and SVG `rect` marks. Data is loaded asynchronously via `d3.csv`, while axes and tooltips are rendered using custom components that leverage D3’s `format` for tick labels.