This bar chart displays the population of the ten most populous countries, using a horizontal layout with country names on the y-axis and population counts on the x-axis. The data is loaded from a CSV file via `d3.csv` and rendered as SVG rectangles with `d3.scaleLinear` and `d3.scaleBand`. Axes are generated using `d3.axisLeft` and `d3.axisBottom`, while styling sets the bars to steelblue. The chart updates dynamically when the CSV data is parsed and processed.