Around one in 24 people aged 15-34 in the UK admitted taking cocaine in the last 12 months, figures for 2013/14 show Around one in 24 people aged between 15 and 34 in the UK admitted taking the drug in the last 12 months, figures for 2013/14 showed. This was the largest proportion of all countries for which statistics were available, a nalysis by the European Monitoring Centre for Drugs and Drug Addiction showed.