{"version":"1.0","type":"rich","title":"Activity6-Question2","description":"This visualization shows health expenditure and life expectancy across multiple countries from 1970 to 2007, using a horizontal stacked bar chart where each bar represents a country and segments show annual spending contributions. The chart uses D3 v7’s `d3.stack()` to create the stacked layout and `d3.scaleBand()` for country positioning, with years mapped to colors via `d3.scaleOrdinal()`. Hovering over any segment triggers mouseover and mousemove events that display a tooltip with the exact spending value for that country-year combination. The data comes from a CSV file loaded using `d3.csv()`.","provider_name":"VizHub AI Studio","provider_url":"https://vizhub.com","html":"<iframe src=\"https://vizhub.com/viz/f9643a700f844c889a46b80babc0ef53?mode=embed\" width=\"960\" height=\"500\" scrolling=\"no\" frameborder=\"0\"></iframe>","width":960,"height":500,"cache_age":3600}