This horizontal bar chart displays the populations of ten countries for the year 2000. Each bar’s length encodes the population value, with a linear scale on the x-axis and a categorical band scale for countries on the y-axis. The visualization is built with React and D3 v5, creating SVG marks and axes. It uses `scaleBand`, `scaleLinear`, and `format` to render the chart, and data is sourced from a CSV file via a custom `useData` hook.