This bar chart displays the populations of the top 10 most populous countries, using 2018 estimates from the United Nations World Population Prospects 2017 data. The data is loaded from a CSV file and rendered as SVG rectangles. The visualization uses the D3 v5 library, specifically the `scaleLinear`, `scaleBand`, `axisLeft`, and `axisBottom` APIs to map population values to bar widths and country names to vertical bands. The chart includes labeled axes and bars filled with a steel blue color.