Widen the year filter in stg_ees_ks2_national.sql from >= 201617 to >= 201516 so the England national-averages line no longer starts a year late; the catalogue CSV has a real, comparable 201516 row (2015/16 was the first year of the current expected-standard tests, so it's the correct floor). GPS/science/scaled-score national columns confirmed present at source with correct mapping; prod NULLs are stale raw data, backfilled by the next extract run. No _KS2_NATIONAL_COL_MAP change accompanies this fix. Co-Authored-By: Claude Fable 5 <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_0146VHeLAWjDVE2B5uU67jCB