This bar chart displays population figures for imagined countries from a CSV file, with countries on the vertical axis and population on the horizontal axis. Built with React and D3 v6, it uses SVG rendering and the `select`, `csv`, `scaleLinear`, `scaleBand`, `axisLeft`, and `axisBottom` APIs. The chart applies a custom tick formatter that converts G to B, removes axis domains and tick lines, and renders bars in steelblue.