Custom Data Labels in Numbers Chart?

I have 3 columns of data that I'm using for a scatterplot. X variable, Y variable, and Year. I have the chart working properly for the data but cannot find anyway of labeling each point with the corresponding year.

Am I just being thick here?


Welcome to Ask Different!

I hope I am wrong but I don't think the answer for Numbers has changed ("in general, there is no practical way of doing it outside text boxes") since this question and its answer were posted a few years ago.