《太平广记·卷一百八十五·铨选一》
唐张文成说，乾封以前每年选任官员超不过几千人，垂拱以后，每年常常达到五万人。
唐张文成曰：乾封以前，选人每年不越数千；垂拱以后，每岁常至五万。
Zhang Wencheng of the Tang Dynasty said that before Qianfeng year, the number of officials selected each year did not exceed a few thousand. After Chuigong year, the number often reached 50,000 per year.