Their numbers seem to come from here (or wherever this site gets its numbers): https://www.statista.com/statistics/276635/market-share-held-by-tablet-vendors/ h

Their numbers seem to come from here (or wherever this site gets its numbers): https://www.statista.com/statistics/276635/market-share-held-by-tablet-vendors/ https://www.statista.com/statistics/276635/market-share-held... However, those numbers are not about deployed market share but about market share of shipments. Related numbers, certainly, but not the same.