{"version":"1.0","type":"rich","title":"Rebrickable Lego Sets by Year","description":"This bar chart shows the cumulative number of Rebrickable Lego sets released each year from 1949 to 2019, with the running total rising steadily from 5 to nearly 15,000. The visualization uses D3 v5’s `scaleTime` for the x-axis (with ticks every three years) and `scaleLinear` for the y-axis, rendering steelblue rectangles via SVG. Data is loaded from a CSV using `dsv`, and the chart includes a title and author credit.","provider_name":"VizHub AI Studio","provider_url":"https://vizhub.com","html":"<iframe src=\"https://vizhub.com/viz/0243cf53b7c54472b75a2fe543ced412?mode=embed\" width=\"960\" height=\"500\" scrolling=\"no\" frameborder=\"0\"></iframe>","width":960,"height":500,"cache_age":3600}