I have created a video to explain the holes rate for OC and SA regions. This will give you a better idea of where your case sits relative to all the other cases in your region.
If you understand what holes rate is and simply want the quick answer – the OC holes rate is 47% and the SA rate is 39%. In both regions the holes rate will be consistent throughout the range.
High case numbers reported or calculated for the two regions are OC – 3300 and SA 4500.