This bar chart displays the 2010 population estimates for 20 countries, ranked vertically by country name. Data is loaded from a remote CSV file and rendered as SVG rectangles using React. The visualization uses D3 v6 scales (`scaleBand` and `scaleLinear`) along with custom `AxisBottom` and `AxisLeft` React components. Axes are formatted with D3's `format` function to abbreviate large population values, and tooltips show the same formatted values on hover.