{"id":8473,"slug":"african-export-footprint-leave-one-out-29-october-2026","title":"Does one extreme reading on either side of the midpoint split explain the decline?","source":"Computed from this desk's african-presence-over-time series (54 collection dates, 13 August to 29 October 2026)","source_url":"https:\/\/kworb.net\/spotify\/","source_type":"computed","method":"At the midpoint split (27 readings against 27), the single highest export-share reading in the first half (2026-08-31, 2.608%) and the single lowest export-share reading in the second half (2026-10-16, 0.966%) are the two readings that most narrow the gap between the halves if removed, since dropping the head's high point and the tail's low point is the single change most favourable to the idea that the gap is an artefact of those two dates. Both were dropped at once and both means recomputed on 26 readings each.","unit":"mixed","license":"Afrobeats Wire's compilation and analysis are licensed CC BY 4.0. Rights in the underlying source data remain with the source named above.","confidence":"medium","retrieved":"2026-10-30 01:51:48","n":2,"first_party":0,"columns":[{"key":"scenario","label":"Scenario","type":"text"},{"key":"head_n","label":"Readings, first half","type":"number"},{"key":"tail_n","label":"Readings, second half","type":"number"},{"key":"head_export_share_pct","label":"First half export share, %","type":"number"},{"key":"tail_export_share_pct","label":"Second half export share, %","type":"number"},{"key":"change_pct","label":"Change, %","type":"number"}],"rows":[{"scenario":"All 54 readings","head_n":27,"tail_n":27,"head_export_share_pct":2.01,"tail_export_share_pct":1.34,"change_pct":-33.45},{"scenario":"Drop the first half's highest reading (31 Aug) and the second half's lowest (16 Oct)","head_n":26,"tail_n":26,"head_export_share_pct":1.98,"tail_export_share_pct":1.35,"change_pct":-31.95}]}