Unfortunately, includes inactive days between account creation and last access.
Q&A for speakers of other languages learning English
-- Average reputation per day -- Unfortunately, includes inactive days between account creation and last access. select count(*), avg(reputation), avg(1 + datediff(day, creationdate, lastaccessdate)), avg(reputation / (1 + datediff(day, creationdate, lastaccessdate))) from users where reputation > 1