{"id":9036,"slug":"apple-home-away-tenure-by-origin-2026-robustness","title":"Robustness of Home versus foreign chart tenure for African-origin recordings on Apple Music, by origin, 41 African markets, 16 August to 4 November 2026 (rel_ratio)","source":"Recomputed from apple-home-away-tenure-by-origin-2026","source_url":"","source_type":"computed","method":"Sensitivity check on \"rel_ratio\" in the dataset apple-home-away-tenure-by-origin-2026, 8 rows carrying a value. Rows sorted by that column, then the totals recomputed with the largest rows dropped one scenario at a time, and again with named rows excluded. sum_change_pct and mean_change_pct are each scenario against the full set. A finding that moves sharply when a single row leaves is a finding about that row.","unit":"count","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":"2026-11-04 07:52:32","n":8,"first_party":0,"columns":[{"key":"scenario","label":"Scenario","type":"text"},{"key":"n","label":"Rows","type":"number"},{"key":"sum","label":"Total","type":"number"},{"key":"mean","label":"Mean","type":"number"},{"key":"top_share_pct","label":"Largest row share, %","type":"number"},{"key":"sum_change_pct","label":"Change in total, %","type":"number"},{"key":"mean_change_pct","label":"Change in mean, %","type":"number"}],"rows":[{"scenario":"All rows","n":8,"sum":12.07,"mean":1.5088,"top_share_pct":36.29,"sum_change_pct":0,"mean_change_pct":0},{"scenario":"Excluding the top 1 (Angola)","n":7,"sum":7.69,"mean":1.0986,"top_share_pct":30.69,"sum_change_pct":-36.29,"mean_change_pct":-27.19},{"scenario":"Excluding the top 3 (Angola, Algeria, Nigeria)","n":5,"sum":4.07,"mean":0.814,"top_share_pct":29.73,"sum_change_pct":-66.28,"mean_change_pct":-46.05},{"scenario":"Excluding the top 5 (Angola, Algeria, Nigeria, Tunisia, Morocco)","n":3,"sum":1.78,"mean":0.5933,"top_share_pct":52.25,"sum_change_pct":-85.25,"mean_change_pct":-60.67},{"scenario":"Excluding Nigeria","n":7,"sum":10.81,"mean":1.5443,"top_share_pct":40.52,"sum_change_pct":-10.44,"mean_change_pct":2.36},{"scenario":"Excluding Egypt","n":7,"sum":11.48,"mean":1.64,"top_share_pct":38.15,"sum_change_pct":-4.89,"mean_change_pct":8.7},{"scenario":"Excluding South Africa","n":7,"sum":11.14,"mean":1.5914,"top_share_pct":39.32,"sum_change_pct":-7.71,"mean_change_pct":5.48}]}