In December 2014, it asked other ambulance services for help after its busiest ever week with 11,008 call outs for the most seriously ill and injured. Demand is up 15% on the same time last year. Help has only been requested previously in respect of events like the Olympics or the 2005 bombings. The service has more than 400 vacancies and has had problems recruiting people. It is failing to reach its response targets. In 2014/15, the trust recruited 175 paramedics from Australia.