{"id":10334,"slug":"african-chart-breadth-vs-artist-count-halves-13aug-14nov-2026","title":"Chart breadth versus artist count, African artists on Spotify’s published daily charts, 62 readings to 14 November 2026","source":"This desk's own african-presence-over-time series, 62 collection dates from 13 August to 14 November 2026","source_url":"","source_type":"computed","method":"The 62 rows of this desk's african-presence-over-time series were split into two halves of 31 readings each by position in the series, not by calendar length: the first half runs 13 August to 28 September 2026 and the second half runs 30 September to 14 November 2026. For each of six columns the unweighted mean across the 31 readings in each half was taken, then the change and the percentage change between the two means. 'Charts carrying any African artist' is the series column markets_charting, which counts the published Spotify country charts on which at least one lead artist of African origin appeared on that date. 'African artists charting' is the series column african_artists, the count of distinct African-origin lead artists appearing anywhere on the panel that date. 'African artists per charting chart' is african_artists divided by markets_charting, computed per reading and then averaged across the 31 readings in the half, so it is a mean of ratios and not a ratio of means. Means are rounded to two decimal places and percentage changes to one, and the rounded values are the ones quoted. Spotify's global chart is excluded throughout because it aggregates the country charts. Collection dates are not evenly spaced and a missing date is a gap in collection, not a zero, so the halves contain equal numbers of readings rather than equal numbers of days. Origin is applied as currently registered to every date in the series, so a corrected artist is corrected across the whole record. readings_each_half records the 31 readings on each side of the split, stated as a column so the sample size travels with every 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":"high","retrieved":"2026-11-15 13:53:39","n":6,"first_party":0,"columns":[{"key":"metric","label":"Metric","type":"text"},{"key":"readings_each_half","label":"Readings in each half","type":"number"},{"key":"first_half","label":"Mean, first 31 readings (13 Aug to 28 Sep)","type":"number"},{"key":"second_half","label":"Mean, last 31 readings (30 Sep to 14 Nov)","type":"number"},{"key":"change","label":"Change","type":"number"},{"key":"change_pct","label":"Change, %","type":"number"}],"rows":[{"metric":"Charts carrying any African artist","first_half":9.13,"second_half":7.74,"change":-1.39,"change_pct":-15.2,"readings_each_half":31},{"metric":"African artists charting","first_half":111.32,"second_half":111.87,"change":0.55,"change_pct":0.5,"readings_each_half":31},{"metric":"African artists per charting chart","first_half":12.5,"second_half":14.51,"change":2,"change_pct":16,"readings_each_half":31},{"metric":"African share of all chart streams, %","first_half":2.35,"second_half":2.54,"change":0.19,"change_pct":8,"readings_each_half":31},{"metric":"Share of African chart streams earned outside Africa, %","first_half":1.93,"second_half":1.27,"change":-0.66,"change_pct":-34,"readings_each_half":31},{"metric":"African chart streams earned outside Africa","first_half":339092.94,"second_half":230674.58,"change":-108418.35,"change_pct":-32,"readings_each_half":31}]}