That's net migration. Unfortunately, most of the back-migrants are seniors, so as a drain on the economy, I'd look at the total numbers - and those are much higher, more like the twice of that. I post figures if I find a good enough source (what I Googled so far only covers parts of the 1989-2004 range). On the other hand, 3 million is just one fifth (of the 1989 15 million), so I was off at any rate.

_{*Lunatic*, n.
One whose delusions are out of fashion.}