The stats only list when someone who had anything to do with OAA (i.e. did the ground-school only or the full Integrated) changes job.
It's not restricted to your first job.
Every time you change job you will reappear on the stats page - a bit misleading really.
{EDIT}
Turns out it was an honest mistake that I appeared twice on the list (I guess if they did it for everyone for every job move, the stats would be hugely misleading, showing hundreds of 'placements' every year.
Last edited by hollingworthp; 24th Jan 2011 at 16:09.
Reason: New Information