4 families found so far

My partner and I are expecting our first baby in June. So far, we have found 4 sibling families on three separate continents! In speaking with the others, we have learned that different countries regulate how many families can be helped by each donor, but that each countries numbers are different. For example, European sperm bank USA allows 25 families to be helped by each donor. The UK allows 10 and Australia allows 5. Canada allows 3 per 100,000 population. European sperm bank USA provided our sperm in Canada through Outreach Canada via the Seattle Sperm Bank. I am wondering if the number of families helped is kept to the 25 total (which is the greatest allowable number of the three) or if all the numbers are mutually exclusive by country meaning 40 (ie. 25 from US plus 10 from UK plus 5 from AUS plus Canada) total families could receive donations. Anybody out there know? Thanks!! And good luck to all!!