> If it were cumulative, the first values would be 0, 1, 3. No. When you count events, each one contributes a count of 1. The running sum of that is sequence

> If it were cumulative, the first values would be 0, 1, 3. No. When you count events, each one contributes a count of 1. The running sum of that is sequence 0, 1, 2, 3 ... The meaning is "how many job postings have posted until time T.