That only measures people that record it. You don’t need any paperwork, other than a written receipt that you keep, submitted to the government in a lot of states if you buy from a person and not a store.
It’s a survey, by definition it only counts people that record the information in question. That’s the fundemental premise to the entire field of statistics.
(fwiw, nobody is allowed to do any science on even the submitted records, because this country is broken. Hence why finding current info is difficult)
That only measures people that record it. You don’t need any paperwork, other than a written receipt that you keep, submitted to the government in a lot of states if you buy from a person and not a store.
It’s a survey, by definition it only counts people that record the information in question. That’s the fundemental premise to the entire field of statistics.
(fwiw, nobody is allowed to do any science on even the submitted records, because this country is broken. Hence why finding current info is difficult)