Here are the tags in the database that the certificate generation code that @jrbl is writing must interface with.
quizzes is the subtotal across quizzes
exams is the subtotal across exams (not multiplied by 3)
core-exercises is the subtotal across exercises (not multiplied by 2)
accomplishment is the total score need for accomplishment, or q + 3(exams) + 2(core-exercises)
challenge-exercises is the subtotal of all challenge exercises (not multiplied), which is fine according to Jennifer's grading FAQ.