{"id":2225,"slug":"sa-chart-share-series-robustness","title":"Robustness of South Africa’s own-chart African share, five collection dates, 13 to 22 August 2026 (za_share_pct)","source":"Recomputed from sa-chart-share-series","source_url":"","source_type":"computed","method":"Sensitivity check on \"za_share_pct\" in the dataset sa-chart-share-series, 5 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":"pct","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":"2026-08-22 13:46:17","n":5,"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":5,"sum":56.08,"mean":11.216,"top_share_pct":21.95,"sum_change_pct":0,"mean_change_pct":0},{"scenario":"Excluding the top 1 (2026-08-22)","n":4,"sum":43.77,"mean":10.9425,"top_share_pct":26.5,"sum_change_pct":-21.95,"mean_change_pct":-2.44},{"scenario":"Excluding the top 3 (2026-08-22, 2026-08-21, 2026-08-17)","n":2,"sum":20.95,"mean":10.475,"top_share_pct":53.51,"sum_change_pct":-62.64,"mean_change_pct":-6.61}]}