It's easy.A couple of weeks ago I received an email from...

It's easy.
A couple of weeks ago I received an email from Services NSW asking whether I would be willing to participate in surveys from time to time.
Why not, so I clicked yes and was asked to fill in a form:
Name, Age, Married/Single, blah blah, and did I identify as an ATSI so I thought "heck, let's see what happens" and I ticked the box [Y], and on to the next question.
Bingo, the NSW ATSI population just increased by 1. Just like that.