How many of a sub-field answer's boxes carry a value, for the review row's "2 of 16 boxes" line. null for any answer with no per-coordinate statuses — a count derived from nothing would read as "0 of 0" on every legacy row.
null
How many of a sub-field answer's boxes carry a value, for the review row's "2 of 16 boxes" line.
nullfor any answer with no per-coordinate statuses — a count derived from nothing would read as "0 of 0" on every legacy row.