The numbers are people coming legally with VOA.
Differentiate with people coming legally not using VOA but using blue collar worker agencies and paperworks.
Also different with people coming illegally through fishing boats.
First group consists of Toms, Dicks, Harrys, Kumars, Nguyens, Ong Baks, Joses and maybe Nurdins…
Second group are Nguyens, Ong Baks, Joses and Nurdins.
Third group could be any one. Article talking about first group, you referring to runaway workers are the second (or third) group.