985
At that time there were 76 aircraft based at this airport : 64 % single - engine , 29 % multi-engine , 4 % jet and 3 % helicopter .
 None
Please list all entity words in the text that fit the category.Output format is "type1: word1; type2: word2". 
Option: location, person, organization 
Text: {0} 
Answer:
 None