Calculate the data efficiency of a TTP/A system that consists of 8 nodes where each node sends periodically a two byte message (user data). Assume that the intermessage gap between the Fireworks byte and the first data byte is 4 bitcells, and the intermessage gap between two successive data bytes is two bitcells. The gap between the end of one round and the start of the next round is 6 bitcells. What is the data efficiency of a functionally equivalent CAN system with a two byte data field (see Section 7.5.3)? Assume that the intermessage gap in the CAN system is 4 bitcells.