Q,
I don't understand your figures. Maybe I am missing something.
Looking at EB2-I 2008, you have a demand of 28,943. That doesn't look right.
Overall, that represents an OR of 1.23 compared to the 23,566 PERM Certifications for India in the same period.
That is too high in my opinion. Personally, I have a calculated OR of nearer 0.85 (or c. 20k cases).
I believe the figure of 2008 cases already approved is about 25-27%.
Both the above would explain why you think the number of approvals are so much higher.