If so, then add a new column into the query, that extracts the year from the date, (eg. use DatePart, or convert into string and extract the last two chars). Now group by this column and give 'sum' for sales column.
Where says YYYY do i put a year because when i do it doesnt let u run it but when i leave it and the parameter comes up i put in a year and it stil shows all of them. This will be a report after as well