(1) What is the revenue that was generated in each month by the e-tolling system since the day it was switched on until the latest specified date for which information is available; (2) what is the monthly revenue required to run the e-tolling system at a profit; Friday, 8 May 2015 564 INTERNAL QUESTION PAPER: NATIONAL ASSEMBLY NO 13 - 2015 (3) what are the respective monthly expenses that have to be paid by the monthly revenue from the day the e-tolling system was switched on until the latest specified date for which information is available; (4) how many e-tags were registered in each month since the day the system was switched on until the latest specified date for which information is available; (5) how many e-tags were deregistered in each month since the day the system was switched on until the latest specified date for which information is available?