I’d looked at a compiled list of lab results (from a single lab) awhile ago. I’d thought this might be interesting:
Out of about 4K samples, only 9 of those had tested at >= 30% THC. Of those nine, three of them were from canna-cup samples. There were no obvious types of strains that were specific.
For total cannabinoids, however, about 200 of the samples showed total cannabinoids over 30%. The strains appear all over the place.
For instance, here is a small subset appearing in the >30% for total cannabinoids:
If we pick one such strain name “Tangie”, we’ll see a larger distribution ranging from ~19% - 33% total cannabinoids and THC ranging from 15% to 28%.
The dataset only goes by what names the producer enters so there is no real guarantee of the genetics. But, assuming they are accurate, there is quite a wide range perhaps partially depending on the grower and which phenos they happen to pick for testing.