MMAJunkie.com has the story:
of the 14,166 attendees, a total 4,465 — nearly a third of the overall crowd — were issued complimentary tickets, according to an email today sent to MMAjunkie.com (www.mmajunkie.com) by Nevada State Athletic Commission Executive Director Keith Kizer.
Only 9,701 were paid attendees.
However, despite a lower-than-usual percentage of paid attendees, UFC 92 still garnered a live gate of $3,468,440 — just two days after Christmas. It was the fifth-highest gate total among the 12 events that have been held at the MGM Grand Garden Arena in the UFC's 15-year history.