I haven't managed to find such statistics, but most likely I am looking at the wrong places. Thanks for the comments though, it is great to get responses from fellow 7Sagers, it makes me feel like part of a close-knit community !
my concern about age is that while many people start law school in their 30s, I haven't managed to find more than 2 people who go to top schools like Harvard or Yale in their 30s. Do top schools discriminate more in terms of age?
If I am not confident in scoring high enough this Saturday, how badly would it hurt my chances at top-5 schools if I take the December LSAT and submit my applications then?