Where it comes from
Japanese-language document, 2016 The Pokémon Company (Wayback capture of corporate site) · 15 July 2016 Open the original ↗
The line in the source
全世界における累計市場規模：4.8兆円以上 [gloss: cumulative worldwide market size over JPY 4.8 trillion (games, card game, licensed goods, TV anime, films combined per 「※ゲーム、カードゲーム、ライセンス商品…」)] Related figures
The same measure, other periods