Persons of Concern StreamGraph by Origin
This streamgraph shows the total number of persons of concern—including refugees, asylum-seekers, and internally displaced people—grouped by country of origin, with data from UNHCR Population Statistics. Countries with low cumulative counts are excluded, and interactive hovering highlights a path in black. The visualization uses d3.v4 with d3.stack and is rendered as SVG, employing the d3-area-label library to position white labels. Year values are interpolated across a time axis with minor and major tick marks.