How much has Zelda sold?

Could you please elaborate on the exact amount of Zelda that has been sold so far? It would be interesting to know the specific figure, as it could provide valuable insights into the demand and popularity of the product or service. Are there any trends or patterns in the sales data that could be highlighted? Additionally, how does the sales figure compare to similar products or services in the market? It would be great to gain a comprehensive understanding of the current state of Zelda's sales performance.