In '99, she sent home 1,500 yuan. In 2000, she sent home two thousand yuan, and two thousand yuan in '01. This year, it was still two thousand yuan. It wasn't that she didn't want to send more, but she felt that sending too much would arouse their suspicions. She thought that in this era, sending two thousand yuan back home would suffice for their daily expenses.
Besides, her parents didn't have just one child. There were four or five siblings in total. If they all showed filial piety, the money they had should be enough.
She didn't expect her parents to help her out, nor did she count on the assistance of her siblings. The sole reason she sent money every year was to fulfill the original owner's duty of filial piety to her parents.