This visualization displays stacked horizontal bars representing 2018 project funding items by sub-category, segmented by institution nature (Consumer, Corporate, Home Office). The chart uses D3.js v3 with `d3.layout.stack` for stacking, `d3.svg.axis` for axes, and `d3.legend` for the color legend. Hovering over legend entries highlights corresponding segments via foreground layers, while a `d3.tip` tooltip shows exact item counts. Data is loaded from an external CSV file, rendered as animated SVG with custom tick formatting.