12 Apr 2019 - A wording change has been made to the text above Table DV.1 to clarify the understanding around additional vulnerabiliies. No data was changed.

13 Feb 2019 - Footnote 4 added to tables YOUNG.2, OLDER.2, MH.2, EXIT.2, CPO.2, SUB.2 as historical data has been revised due to a new method for calculating age.