Flower - Given the age ranges are given as .21/.71, for that to be a consistent amount of time for each column it's got to be .5 of a year per column and thus 9.21 is a decimal representation of age not years.months, so the actual age range represented by say 8.71/9.21 is 8yrs 8.5 months to 9yrs 2.5months.

Clear as mud?

My DD was a few days over 9yrs 2 months when she did the online Raven's test. So I followed the column marked 8.71-9.21 / 9. I think the next number, 7 for that column, is just a column label.