Thanks. Is there a hierarchy? Like if I identify as both Black and White, am I counted in Black+ or White+ or is it double counted? Does the employee provide a ranking?
It's not a hierarchy, and they don't add up to 100%, so there is double-counting. I just did the math on one of the rows from the report using the + labels and that row added up to 104.6%, so we can deduce that 4.6% of people fit into two categories (or maybe slightly less than that including people that fit into 3 or more categories).
My interpretation is that you'd be in both "Black+" and "White+"
The only other group as obsessed with racial hierarchies as the modern woke left was Nazi Germany. Their published classification would seem to fit just fine at Google.