That suggests there are a lot more persons contributing to the pool, so it grows larger. https://aooboo.us/%EB%AA%A8%EB%B0%94%EC%9D%BC-%ED%86%A0%ED%86%A0%EC%82%AC%EC%9D%B4%ED%8A%B8-%EC%95%88%EC%A0%84%ED%95%98%EA%B3%A0-%EC%84%B1%EA%B3%B5%EC%A0%81%EC%9D%B8-%EA%B2%8C%EC%9E%84-%ED%94%8C%EB%A0%88%EC%9D%B4/