{"version":"1.0","type":"rich","title":"Population and age","description":"An interactive bar chart displays population distribution across age groups for selected years, with a slider controlling the year from 2015 to 2019. The visualization uses D3 v4’s `scaleBand`, `scaleLinear`, and `scaleQuantile` for positioning and color encoding, with SVG rectangles animated via `transition`. Data is loaded from CSV files using `d3.queue` and `d3.csv`, while React state is not actually implemented despite the framework metadata.","provider_name":"VizHub AI Studio","provider_url":"https://vizhub.com","html":"<iframe src=\"https://vizhub.com/viz/df98210ef0c4461f82c1f576f34b8077?mode=embed\" width=\"960\" height=\"500\" scrolling=\"no\" frameborder=\"0\"></iframe>","width":960,"height":500,"cache_age":3600}