PS This data is normally only available on request. Normally, a nerd like me makes a data request and the kind souls at the ONS cook it up. But even then, you never see the full picture as you are only told what you ask. The ONS has also published supplementary tables which offer the most detailed study into the relationship between immigration and employment. From what I've seen so far, it includes pensioners. Immigration has had its most dramatic effect amongst the working-age group where almost all new jobs will, I suspect, soon be accounted for by immigration.