This bar chart visualizes the 2018 population estimates for the ten most populous countries, with data from the United Nations World Population Prospects 2017. It displays horizontal bars ordered by population, using a linear scale for the x-axis and a band scale for country names on the y-axis. The visualization is built with D3 v5, using `d3.csv`, `scaleLinear`, `scaleBand`, `axisLeft`, and `axisBottom` to render the SVG elements. Population values are converted from thousands to raw numbers before plotting.