After a decade of professional fund-raising, it has now amassed $400 million of cash as of March. It created an endowment, managed by the Tides Foundation, which now holds well over $100 million of that. The Foundation wanted to hit that figure in ten years, but found it had sailed past it in just five. In 2021, the appeals raised a total of $162 million, a 50% year-on-year increase. Yet the running costs of Wikipedia are a tiny fraction of the amount raised each year."