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That's not how these kind of studies work. They periodically over several decades ask you what your current consumption is.
by tzs 2y ago
That's not how these kind of studies work. They periodically over several decades ask you what your current consumption is.
- Fire-Dragon-DoL 2y agoI see, based on the previous commented it seemed to suggest this happened only at the "end" of the 40 years
- FrustratedMonky 2y agoNo study just asks people what they were doing 40 years ago. There are set questionnaires that are filled out on some short period, weekly, monthly, etc... so there is a lot of data. Self reporting has problems. But this is more to get broad trends, such that more detailed studies can zero in on any interesting findings.