Unmet demand (% of waiting list to number main fixed telephone lines in operation)
Unmet demand is unmet applications for connection to the public switched telephone network that have had to be held over owing to a lack of technical facilities (equipment, lines, and the like) divided by the number of main telephone lines in operation.  
Unmet demand is unmet applications for connection to the public switched telephone network that have had to be held over owing to a lack of technical facilities (equipment, lines, and the like) divided by the number of main telephone lines in operation.  