I think the 192 might be those who got admitted.
If 65% is the yield for both Jan and July intakes, based on my understandng, the yield rate for the Jan intake is normally higher, since the July intake would be competing with other US b-schools. So I would say the yield of Jan intake would be somewhere around 75% to 80%. (just a wild guess)
While we have no idea of the percentage of those who hold dual citizenship, a 2005 INSEAD MBA alumnus blog (you can google it) once said it was around 20% so let's assume that number hasn't changed.
Ergo, 194 who got admitted, of those 20% hold dual citizenships so that would leave us to 155. If 80% of them accepted the offer, then that would give us 124.