the office for national statistics said more than 31 million people were in work after an increase of more than half a million in the past year .
david cameron today warned the recovery would be put at risk by a labour-snp ` stitch-up ' between labour and the snp , after ed miliband and nicola sturgeon clashed in a tv debate last night .
the figure is up from 29million in spring 2010 , before the tories and lib dems went into coalition .