This interactive streamgraph visualizes the total number of persons of concern grouped by country of origin, with the sum of asylum-seekers, refugees, internally displaced persons, stateless persons, and other categories. The data comes from UNHCR Population Statistics and excludes countries with relatively low counts. Built with D3 v4, the visualization uses d3.stack with a wiggle offset and inside-out ordering, along with d3.area, d3.scaleTime, and d3.scaleLinear to render the smooth, labeled streams in SVG. The d3-area-label library positions area labels, and hovering over a path highlights it in black.