This is from the spreadsheet I did that in. The results as of ~90% in:
Code:
Rick Santorum 14,352 52%
Mitt Romney 5,770 21%
Newt Gingrich 3,991 14%
Ron Paul 3,489 13%
Other 227 1%
Total 27,829
That's how the delegates would be allocated, were it not for the clause in the rules that if two or more candidates clear 20%, only those candidates votes are considered for the purpose of delegate allocation.
Code:
Rick Santorum 14,352 71%
Mitt Romney 5,770 29%
Total 20,122
You can see this in the
caucus rules here, scroll to near the bottom, "Section VI: Binding of Delegates and Alternate Delegates". They provide an example very similar to the actual result.
Thus Santorum wins 33 of 40 delegates, with Romney getting just 7 (25 awarded for taking the state, and 15 are awarded for winning districts). Had Romney finished with 19%, Santorum's share would have been much lower.