Anywhere from 0 to 10000 daily depending on the originality of content, quality of existing backlinks, how long the backlinks have been up, the amount of content, the type of site, inner linking on site........
Such a leading question, too many factors to give any sort of answer. I have a blog with decent content and hardly any likns that gets 20 U/V daily, another adult site with shit content and less links that gets about 100 U/V. You cannot say really but bascially you want more links