And most figures even of foreigners are by-products of data gathered, by separate agencies, for other reasons, not to measure the flow or stock of migrants.
"You flow gas from the samples through fairly long tubes that are specifically designed to separate out the different constituents of the gas, " Vasavada said.
More to the point, the advocates of a new separate peace with Hanoi invariably contend that even greater cooperation on accounting for the missing will flow from normalizing trade relations.
Hairballs mean more inventory costs because at each geographically separate production stage a buffer stock of unfinished items is kept to cope with any disruptions in the flow from another plant.