This example displays a horizontal bar chart of country populations using D3.js v5, with each bar’s length scaled linearly against population values and countries ordered along a band scale. The SVG rendering relies on `d3.scaleLinear`, `d3.scaleBand`, `d3.axisLeft`, and `d3.axisBottom` to compose axes, while data loads from a CSV file via `d3.csv` and populates `rect` elements dynamically.