CUTOFF and OFFCUTOFF are identical in 2020 ASEC

The documentation indicates that CUTOFF and OFFCUTOFF should differ for some ASEC records, at least for secondary individuals under 15 who are in the CUTOFF universe but not the OFFCUTOFF universe.

However, these variables are identical in the 2020 ASEC, and 0.2% of records have the 999999 NIU code for both CUTOFF and OFFCUTOFF (these are all under 15).