This bar chart shows the population of the top 10 most populous countries using 2018 estimates from the United Nations World Population Prospects. The chart displays horizontal bars with country names on the y-axis and population values on the x-axis, using an SVG rendering approach. The code uses `d3.csv`, `d3.scaleLinear`, `d3.scaleBand`, `d3.axisLeft`, and `d3.axisBottom` from d3 v5 to load the data, scale the values, and draw the axes and rectangles.