A bar chart displays the number of cricket tournament wins per country from 1975 to 2025, based on aggregated CSV data loaded via `d3.csv`. It uses `d3.rollups` to count wins per winner, then sorts them in descending order. The visualization renders as an SVG using D3 v7 with `scaleBand` and `scaleLinear` axes, horizontal grid lines, and tooltips that appear on bar hover via `mousemove`. Bar colors shift on interaction, and rotated country labels appear on the x-axis.