Category
What the data says
Index vs. wallet
Index is a group's average spend divided by the all-household average, times 100. Share of dollars multiplies that spend by how many households are in the group. A small group can over-index hard and still hold a sliver of the money.
What it can't tell you
This is category spending, not demand for your specific product. A $4,000 watch reads as jewelry, watches and apparel services. Brand-new categories map to their nearest existing one, so check the match and change it if it's wrong.
Source
U.S. Bureau of Labor Statistics, Consumer Expenditure Surveys, 2024 calendar-year tables by demographic characteristic. Households are BLS consumer units. Estimates with relative standard error above 25% are flagged.