Stacked Area Chart

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Vega-Lite JSON Specification

{
  "$schema": "https://vega.github.io/schema/vega-lite/v5.json",
  "width": 300, "height": 200,
  "data": {"url": "data/unemployment-across-industries.json"},
  "mark": "area",
  "encoding": {
    "x": {
      "timeUnit": "yearmonth", "field": "date",
      "axis": {"format": "%Y"}
    },
    "y": {
      "aggregate": "sum", "field": "count"
    },
    "color": {
      "field": "series",
      "scale": {"scheme": "category20b"}
    }
  }
}