This example demonstrates a horizontal bar chart of the top 10 countries by population for 2020, with D3 scales and axes rendered as React SVG components. It uses `d3.csv` to load UN population data, `scaleBand` for the y-axis categories, and `scaleLinear` for the x-axis values. Axis ticks are generated manually via `xScale.ticks()` and `yScale.domain()`, drawing lines, text, and rectangles directly in JSX. The visualization updates from a loading state to the chart once data arrives.