Palma's Son Sant Joan airport, which currently handles more than 19 million passengers a year, will be used by 38.5 million by 2015. This was the government reply to a question in congress by socialist deputy Miguel Angel Heredia Díaz, who asked about the growth expectations of AENA, the National Airport Authority, over the next ten years. The answer also said that Madrid-Barajas airport will be used by more than 70 million passengers in 2015. The government answer indicated that most of the Spanish airports would have doubled their passenger traffic by 2015. Barcelona currently handles 21 million passengers and this is expected to rise to 40 million in ten years time. In contrast to the busy Son Sant Joan airport, the Son Bonet airfield, used by private planes, is expected to be used by only 17'061 passengers in 2015.