《元史·列传·卷九十二》
还有协济户十八万，自入籍之日起，至今已有十三年，只纳半赋。听说他们现在的财力已趋完善，应增为全赋。
协济户十八万，自入籍至今十三年，止输半赋，闻其力已完，宜增为全赋。
There are also one hundred and eighty thousand households that have been paying half-taxes since they were registered, thirteen years ago. I have heard that their financial situation has now improved, so they should be increased to full taxes.