Here's a Tweet by the author of the diagram responding to a question about the source of the data:  

> The live version of it has the link to the source ( bottom left corner). Data is from BLS consumer expenditure survey.

https://twitter.com/Lodhaviz/status/1615501909799968768 [[Nitter](https://nitter.at/Lodhaviz/status/1615501909799968768)]

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![Diagram: How Americans of Different Generations Spend Their Money](https://i.postimg.cc/Bssb3vgg/Consumer-Spending-by-Generation.png)

Source: https://public.tableau.com/app/profile/preethilo/viz/HowAmericansSpendTheirMoney/ConsumerSpendingbyGeneration