The source website also notes that there’s good comparability of the 5-year snapshot of employer injury claims and rate statistics released by Alberta Labour and Immigration with those released directly by WCB. However, small methodological and coverage differences exist due to differing business reporting requirements. For these reasons, statistics released by the ministry and by the WCB are not expected to be identical. Consideration of when the data were last updated should also be noted by the users of this report.