>> do we have an idea, we have 7500 unduplicated substance abuse? >> i think what was brought out today is that the numbers are not correct that we are calculating. and so, because we have people in different systems, that are also, substance abuse, clients, in our sobering center which is in another division, we want to do a little bit more guiding into the data, commissioner singer because i don't believe when i ran substance abuse, we were at 20,000 clients and so i just don't think that the data is right. >> that was the nature of my question, and so i will ask it and you will come back to it later, it is kind of two other pieces of data, and one is what is the need, so, how many people do we have in this city who could take advantage of those services? and the second question, is, and i think that this is a smaller number, than that. if we had more capacity, how many people would avail themselves of it and so trying to figure out, are we, and where are we in meeting a demand of the population? >> and i think that we do really well in the methad