{"version":"1.0","type":"rich","title":"Rebrickable Lego Sets by Year","description":"This visualization shows the cumulative number of Rebrickable LEGO sets released by year, from 1949 to 2019, as a vertical bar chart. The bars increase steadily, reflecting the growth of LEGO’s set catalog over time. Each bar’s height represents the running total for that year, with a blue fill on an SVG canvas. The code uses D3 v5’s `d3.dsv` to load the CSV data, `d3.scaleBand` for the x-axis, and `d3.scaleLinear` for the y-axis, appending rectangles with manually calculated positions and heights.","provider_name":"VizHub AI Studio","provider_url":"https://vizhub.com","html":"<iframe src=\"https://vizhub.com/viz/0317ac1a8aed45718dc757cf647a4968?mode=embed\" width=\"960\" height=\"500\" scrolling=\"no\" frameborder=\"0\"></iframe>","width":960,"height":500,"cache_age":3600}