Most of the undocumented people deported from the United States last year were young Mexican men, according to a new study. Mexican nationals comprised 65.5% of the 368,644 deportees, and of them the vast majority were men in their twenties and thirties, said the Transactional Records Access Clearinghouse, a data research organisation at Syracuse University. The figure, based on data obtained from US Immigration and Customs Enforcement, showed a more detailed picture than government numbers and shined a fresh light on the Obama administration’s deportation policies. Almost all of the deportees, 93%, were male. Almost four in five, 279,270, were aged between 20 and 39.