This bar chart displays the population of ten countries in the year 2000, with countries on the y-axis and population on the x-axis. Light green horizontal bars, rendered as SVG rectangles, convey each country's population magnitude. The visualization uses D3 v7 with a linear x-scale and a band y-scale, fetching its dataset from a CSV file via `d3.csv`. Axis components are built using `d3.axisBottom` and `d3.axisLeft`, with custom tick formatting replacing "M" with "B" for millions.