radio button sorting in Design Studio

I have a radio button that is set on fiscal year, in my query it is set to sort Descending so that I have my latest year first, but when I putll the data into the radio button, it gives me oldest year first. . I need it to sort so that is looks like this. I cannot hard code this as that would mean each year, someone would have to add the current year and remove the bottom year as they only want to see 3 years in their selection.