This horizontal bar chart displays the top 30 most populous countries in 2020, sorted in descending order. The visualization uses D3.js v7 with SVG rendering, employing `d3.scaleLinear` for the x-axis and `d3.scaleBand` for the categorical y-axis. Bars are colored light green, and axis labels are formatted using `d3.format`. The data is loaded from a CSV file via `d3.csv` and processed with the `useData` utility function.