{"version":"1.0","type":"rich","title":"Activity 7.1 - Area chart","description":"This area chart visualizes the total Spotify streams of the most streamed songs aggregated by their release year, showing how streaming totals trend across decades. The chart uses a steel-blue filled path generated by `d3.area()` with linear scales for both axes. Data is loaded from a remote CSV file using `d3.csv`, then processed with `d3.rollups` to sum streams per year before sorting chronologically. Axes are rendered using `d3.axisBottom` and `d3.axisLeft`, with the SVG output containing numbered year ticks and labeled axis titles.","provider_name":"VizHub AI Studio","provider_url":"https://vizhub.com","html":"<iframe src=\"https://vizhub.com/viz/257baa5826be4055b3ccfc674652d220?mode=embed\" width=\"960\" height=\"500\" scrolling=\"no\" frameborder=\"0\"></iframe>","width":960,"height":500,"cache_age":3600}