Good grief, now look at the "temporary entry for work" visas... which supposedly don't grant permanent residence in the UK, so don't count towards the official statistics for long-term immigration.
"In all of the top nationality cohorts, the vast majority of migrants no longer had valid leave to remain five years after entering the UK."
In other words, they were all still living here after their temporary work visas had expired... and they are not recorded in the official long term migration statistics!
There were 6,870 Ukrainians sampled, 97% of whose leave to remain had expired. Yes, that's right - ninety seven percent!!!
NOW BACK TO STUDENTS -
Of the students followed in the Home Office study over a period of five years from 2004 to 2009, large proportions had expired leave to remain (i.e. they had stayed beyond the period their study visa allowed).
97% of Taiwanese, 95% of Russian, 89% of American, 91% of Japanese, 78% of Chinese, 56% Indian, 53% Pakistani and 51% of Nigerian students had expired leave to remain. They were still living here, but shouldn't be.
These figures are STAGGERING considering the majority of immigrants come here every year are students and it is generally assumed that they leave at the end of their studies.