This bar chart displays the population of the top 10 most populous countries, based on 2018 estimates from the United Nations World Population Prospects. The visualization renders each country as a single steelblue rectangle on an SVG canvas. Built with D3 v5, the code loads data from a CSV file and uses the `d3.scaleBand` and `d3.scaleLinear` APIs to map country names to the x-axis and population values to the y-axis, respectively. The chart is minimal, with no axes or labels, focusing solely on the relative bar heights.