This interactive bar chart displays ad valorem tariff rates by country, sorted in descending order, with clickable bars that highlight selected countries and dimmed others. The visualization uses React for state management and layout, while D3 v7 handles data loading, scales, and rendering. A ResizeObserver tracks container dimensions to redraw the SVG responsively. Hovering over bars reveals a tooltip showing the country and its exact tariff percentage, populated from TSV data.