THS
Please let's not turn this thread into yet another inter-Service 'banter' competition.
As Blunt M8 and Tourist point out between them, the figures presented are frequently dependant on which poor sod has been asked to work them out. A few years ago, I was asked to work out how much it cost the RAF to provide one hour's worth of control, but what looked like a relatively simple task was actually a nightmare to get into and I ended up providing about 6 different answers depending what was factored-in to the overall cost.
ISTR the estimates being pushed back up the chain and whoever wanted the info would simply have selected the answer required, but presented it in the context of what was factored-in. The point I am getting round to is that these figures are meaningless unless we know what is and isn't included.
STH