we compared children who are pfa when entering kindergarten compared to non pfa students and you can see these students earn $35,000 per year or less and again that's because we really try to reach out to the low income communities first including all the children in the district and in head start. this slide just gives you a little break down of where our preschool for all attend. 66% of the students are served in nonprofits and title v and are subsidized child care centers and schools. 26% are from our public agencies, the school district and city college. we have 5% pfa are in child care homes and 3% from private nonprofit. this slide shows about our kindergarten readiness. we did -- worked with applied research to do an external evaluation of incoming kindergartens and compared to them in the preschool for all to those that didn't come from pfa and those participated showed an increase in early literacy skills and early mathematics skills and more impressively in their self regulation skills so with this research and a battery of tests we are feeling and have evidence that childr

into the district, and we know some things about -- we know about their readiness as compared to non pfa. we also know and barbara's slide showed it. we know know norman who the four year olds are at least that have not accessed where and who they are. we know that. i think the earny duncan number included three and four years old and based on census data so it was confusing. >> do you have anything else to add at this point? >> okay. to add to what you asked supervisor yee first of all to clarify about the earny duncan op-ed that data was collected erroneously from the state and not us locally so that is number one and they looked only at the california state preschool program. they didn't look at the broader number of title v subsidies because if you look at all kids eligible, three and four year olds for state subsidies we're serving 90% in san francisco and many of four year olds are in pfa and many of the three years are. in terms of the question about space we started an analysis and the needs are for the expansion and i don't have the numbers with me. we can get them to the attorn