This example displays a bar chart of population counts for five countries—China, India, USA, Indonesia, and Brazil—loaded from a CSV file. The code uses D3 v5 APIs `select` and `csv` to fetch and parse the data, converting population values to numbers. An SVG element occupies the full viewport, though bar rendering is not yet implemented. The visualization currently only logs the parsed data to the console, with CSS classes defined for potential line styling.