Fine.
Here's something to help you get started.
3 ribbons so 3 circle- venn diagram.
total is 100.
First put 32 in the intersection between blue and green, 31 in the intersection between green and white, 38 inthe intersection blue and white.
Put 16 in the center.
THere are 100-16 dogs that have not earned all three.
And you can subtract the intersect from the singles to get the single amounts.