Many people are leaving that’s why. Funerals, Partners, Study, ‘Study’, Internet love, weddings, and a whole lot of other useless reasons I won’t bore you.
I know someone who went to the states to ‘study’, to catch up with his newly found online lover, and now wants to come back.
I think the vast majority are back. That’s those who are actually coming home after a long time away. Then there are those who have always been back, yet find themselves overseas largely for no good reason at all, and now whinge cause they can’t get back!