Section 3 of 6
Counts
Who publishes what, and how often. Every entry below names the definition or the source it depends on, and says where official figures disagree.

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4 entries in this section
- Who publishes whatSeveral bodies publish disability figures on different schedules from different instruments. Naming the source is not optional.
- The censusOnce a decade, near-complete coverage, one question.
- The continuous surveysSmaller samples, more often, with confidence intervals that matter.
- Administrative dataCounts of people in a system, which is not a count of people.