This bar chart displays the population of the top 10 most populous countries, using 2018 estimates from the United Nations World Population Prospects. Each bar’s length encodes population, while country names label the y-axis. Built with D3 v5, it uses `d3.csv` to load data, `scaleLinear` and `scaleBand` for positioning, and `axisLeft`/`axisBottom` for axes, rendering as SVG. Country populations are multiplied by 1000 to reflect the raw data’s units.