This bar chart displays the population of the top 10 most populous countries, using 2018 estimates from the United Nations World Population Prospects. Each country’s bar is colored with a country-specific hexadecimal value from the CSV data, and population figures are multiplied by 1000 after loading. Built with D3 v5, the visualization uses `scaleLinear` for the x-axis, `scaleBand` for the categorical y-axis, and `axisLeft` and `axisBottom` to render the axes. The chart is rendered as SVG elements appended to the DOM.