SELECT sum(Enrollment) ,  affiliation FROM university WHERE founded  >  1850 GROUP BY affiliation
Find the total number of students enrolled in the colleges that were founded after the year of 1850 for each affiliation 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
Find the total number of students enrolled in the colleges that were founded after the year of 1850 for each affiliation type .