{"id":7431,"slug":"african-export-share-period-means-13aug-16oct-2026","title":"African music’s Spotify export share, period means rather than endpoints, 13 August to 16 October 2026","source":"Computed from this desk's own african-presence-over-time series","source_url":"","source_type":"computed","method":"A headline built on a single day can be a trough rather than a trend, so the 44 collection dates in this desk's african-presence-over-time series are averaged in blocks instead of compared end to end. Block one: the first 10 collection dates, 13 to 30 August 2026, against the last 10, 3 to 16 October 2026. Block two: the series split in half, the first 22 dates, 13 August to 17 September, against the last 22, 19 September to 16 October. Each cell is the unweighted arithmetic mean of the named column across the dates in that block, rounded to four decimals for shares and one for stream counts. change_pct is (later block divided by earlier block, minus one), times 100. Unweighted means are used deliberately: weighting by total panel volume would let the two largest chart days in the series dominate the earlier block. Collection is irregular rather than daily, so blocks contain equal numbers of readings, not equal numbers of calendar days. One further row is a deliberate attempt to break the finding: the later block is recomputed with 16 October 2026, the date the headline rests on, removed entirely, leaving 9 dates from 3 to 12 October against the same first 10.","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":"high","retrieved":"2026-10-16 07:55:31","n":7,"first_party":0,"columns":[{"key":"comparison","label":"Comparison","type":"text"},{"key":"metric","label":"Metric","type":"text"},{"key":"earlier","label":"Earlier block","type":"number"},{"key":"later","label":"Later block","type":"number"},{"key":"change_pct","label":"Change (%)","type":"number"}],"rows":[{"comparison":"First 10 dates vs last 10","metric":"Mean export share (%)","earlier":2.2652,"later":1.3051,"change_pct":-42.38},{"comparison":"First 22 dates vs last 22","metric":"Mean export share (%)","earlier":2.1374,"later":1.3365,"change_pct":-37.47},{"comparison":"First 10 dates vs last 9, headline date removed","metric":"Mean export share (%)","earlier":2.2652,"later":1.3424,"change_pct":-40.74},{"comparison":"First 10 dates vs last 10","metric":"Mean export streams per date","earlier":394433.9,"later":241637.2,"change_pct":-38.74},{"comparison":"First 22 dates vs last 22","metric":"Mean export streams per date","earlier":362569.9,"later":252604.6,"change_pct":-30.33},{"comparison":"First 10 dates vs last 10","metric":"Mean markets carrying any African artist","earlier":10.7,"later":7.8,"change_pct":-27.1},{"comparison":"First 22 dates vs last 22","metric":"Mean markets carrying any African artist","earlier":9.59,"later":7.82,"change_pct":-18.48}]}