SELECT sum(Enrollment) ,  affiliation FROM university WHERE founded  >  1850 GROUP BY affiliation
What are the different affiliations, and what is the total enrollment of schools founded after 1850 for each enrollment type?
SELECT sum ( Enrollment ) , affiliation FROM university WHERE founded > 1850 GROUP BY affiliation
select sum ( enrollment ) , affiliation from university where founded > value group by affiliation
What are the different affiliations , and what is the total enrollment of schools founded after 1850 for each enrollment type ?