This bar chart displays population data for several countries, loading values from a CSV file. The visualization uses D3.js (v5) to map population to bar width on a linear scale, while country names are positioned on a band scale. Data is loaded asynchronously with `d3.csv`, and bars are appended as SVG `<rect>` elements through a data join with `selectAll` and `enter()`. The chart updates dynamically based on the parsed numeric population values.