This bar chart displays the populations of five countries, using horizontal bars to compare values. It loads data from a CSV file and renders with D3 v5, using `d3.csv`, `scaleLinear`, `scaleBand`, `axisLeft`, and `axisBottom`. The SVG is sized via attributes, and margins define an inner plotting area. Axis ticks are formatted with `d3.format`, and the chart includes a title and axis label. The bars are filled with steelblue, and grid lines are drawn using a negative tick size.