Ah, the old minimum wage argument; legislation held up by progressives as a another sign of workers rights when in reality, in combination with zero hours contracts it is a mechanism of neo-serfdom.
http://news.sky.com/story/1251973/1-4-million-workers-on-zero-hours-contracts
Workers rights...
To be fair you are looking at the wrong numbers; net migration creates the sense of equivalence, these are much more relevant:
https://www.gov.uk/government/uploads/system/uploads/attachment_data/file/313401/nino-analytical-report-may-2014.pdf
Headline Figures:
The total number of NINo...