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

>> we have a good sense of the nonprofit privates that are not part of pfa and the reasons are they're choosing not to come in and we can get that number because we know the lay of the land. >> i am curious why they don't choose and families choose otherwise and i am curious of the overall penetration rate of those attending preschool. >> like we said we have a 83% penetration rate in preschool, a little less in terms of pfa but we have a high rate and why we stand out compared to other communities. >> do we know how we do compared to other cities? >> yeah, we're way, way above and aarony duncan -- >> yeah, maybe everyone realizes that and how successful we have been around pre-k and a lot of mayoral speeches in new york and oakland and around the country but i don't feel we do enough to tout our success here and i am not aware of how high the penetration rate is. >> it's interesting outside of san francisco everybody knows about san francisco and well established universal preschool and we were the first to have one endorsed by the mayor and it's amazing and it's been going on for a l