Yes this is the a summary total of what is in the registry, by group.
Of the 401 Mangusta built, the registry has data on 309.
309/401 = approximately 77%
Of the 150 USA Pantera GTS made, the registry has 132.
132/150 = approximately 88%.
Of the 41 Pantera Si there is data on 35. 35/41 = approximately 85%.
Like any data set in statistics some adjustments need to be included.
I think there is a 'test' entry. It might be a Mangusta, so the number would go down by 1.
A couple of owners have entered there car under two different VINs.
If the second VIN did not already have content, it might be a duplicate, thus inaccurately increasing the number of cars in the registry by 1.
Take the GT5 model, your nom de guerre, the registry has data on 148 cars.
148/ ??? (total produced) = ? %
We really do not know for sure exactly how many were made. Much has been discussed about this, and George Pence and others have done a great job mathematically reducing the likely range of total cars produced by model.
So run your own calculations.
If I get more time for creating statistics...