This bar chart displays the population of the top 10 most populous countries using 2018 estimates from the United Nations World Population Prospects. The chart uses a linear scale for the x-axis and a band scale for the y-axis, with custom tick formatting that abbreviates numbers and converts gigabytes to billions. The axis labels are customized, with grid lines extending across the plot, and the left axis's domain and tick lines are removed. The visualization is rendered with SVG using D3 v6, loading data from a CSV file.