This horizontal bar chart displays the population of the top ten most populous countries, using data from the United Nations Population Prospect 2017. The visualization ranks countries along the y-axis, with bars extending rightward proportionally to population values. Built with D3 v5, the code uses `csv`, `scaleLinear`, `scaleBand`, `axisLeft`, and `axisBottom` to render SVG elements. The chart applies custom tick formatting to abbreviate population numbers, removes default axis lines, and styles the bars with a steelblue fill against a light green background.