I assume you have both of these columns in 1 table. Create a second table "Calendar" and put a column of dates (same date range as your sales table) and then add a column called "Year" that just contains the year for each date. Join the date column in your Sales table to the date column in your calendar table. Then put the Year column from the calendar table on Axis to get the result. You can also add a column for Month, Quarter, Week, Day Name etc to extend your calendar table so it becomes more useful for different reporting needs.
* Matt is a Microsoft MVP (Power BI) and author of the Power BI Book Supercharge Power BI.