Below is a sample from a deck of graphs depicting the intertemporal changes in the spending habits of Americans
Writes the Business Insider
HS Dent, an economic forecasting firm, compiled Census data spending behavior and presented them as demand curves, which measure average annual expenditure for a given product over age.
HS Dent's charts couldn't be more simple, but we can't stop looking at them. They offer an elegant glimpse into how spending really evolves over time.
Among the graphs, I like this…
…this seems true on my part (as the urge is there)