How many clients do you get from BSTs?

I don't know if this has been asked before, but I'm really curious how many people buy your services monthly?

You can say something like : high end of XXX, or mid end of XX. Just trying to make an image on how much an average user can squeeze from BHW's juice.

Also, do you tend to get costumers regularly, or in burst(half of the monthly costumers in just a day)?