{"snapshotSha256":"1094d387ec6c76b39f36e12f581ca7058c57bd103ba721aefb922b7a5cd2d71d","selection":{"incomplete":"exclude"},"summary":{"total":191807,"entities":2266,"undated":61132,"firstPeriod":"1970-01-01","lastPeriod":"2026-10-02"},"measurementCount":634836,"unflaggedNumericMeasurements":496325,"originalAvailabilityUnreported":191807,"qualityFlagCounts":{"provisional-source-value":3873,"source-qualified-value":728,"source-null":59,"negative-source-value":405,"zero-meaning-unresolved":29849,"observation-date-unreported":61132,"secondary-depth-alias-unresolved":41459},"semantics":"Flags count occurrences, not exclusive records. Unflagged numeric measurements do not prove physical accuracy or historical availability."}