This chart displays the total number of dead and missing migrants over time, aggregated into monthly bins from the Data Canvas Sense Your City Dataset. It uses a histogram layout, with bars representing the sum of casualties per month. The visualization is built with React and D3 v5, using `d3.histogram` for binning, `d3.scaleTime` and `d3.scaleLinear` for axes, and renders SVG rectangles for marks. Tooltips appear on hover via SVG `<title>` elements.