{"id":2810,"slug":"african-presence-over-time-robustness","title":"Robustness of African artists on Spotify’s published daily charts, over time (export_share)","source":"Recomputed from african-presence-over-time","source_url":"","source_type":"computed","method":"Sensitivity check on \"export_share\" in the dataset african-presence-over-time, 9 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":"","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":"2026-08-28 14:09:11","n":9,"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":9,"sum":27.023,"mean":3.0026,"top_share_pct":11.95,"sum_change_pct":0,"mean_change_pct":0},{"scenario":"Excluding the top 1 (2026-08-24)","n":8,"sum":23.795,"mean":2.9744,"top_share_pct":12.99,"sum_change_pct":-11.95,"mean_change_pct":-0.94},{"scenario":"Excluding the top 3 (2026-08-24, 2026-08-13, 2026-08-20)","n":6,"sum":17.615,"mean":2.9358,"top_share_pct":17.46,"sum_change_pct":-34.81,"mean_change_pct":-2.22},{"scenario":"Excluding the top 5 (2026-08-24, 2026-08-13, 2026-08-20, 2026-08-27, 2026-08-28)","n":4,"sum":11.479,"mean":2.8698,"top_share_pct":25.79,"sum_change_pct":-57.52,"mean_change_pct":-4.42}]}