 Like other English ambulance trusts, YAS has experienced year-on-year growth in activity since it was established in 2006; overall response activity was up by 2% from 2012–13 to 2013–14.YAS delivered the national emergency response target (75% of immediately life-threatening calls were reached in eight minutes and 95% of these calls within 19 minutes) for the third consecutive year in 2013–14.This was only achieved by YAS downgrading a large number of calls to a less serious category, they are due to be investigated by the CQC for this.