This bar chart visualizes the proportion of foreign-born residents across seven European countries, with Luxembourg leading at 45.9% and Germany at 14.5%. The visualization uses D3 v5 to load CSV data and render an SVG bar chart with linear and band scales. Axes are customized using `axisBottom` and `axisLeft`, with the y-axis formatted as percentages and grid lines drawn via `tickSize`. The chart includes a title and a rotated y-axis label, both styled through CSS classes.