LOL you think our economy is functioning cause of billion/yr the generals and politician get as a bribe if thats what you think boy do i have a deal for you on Brooklyn bridge.
You are only taking direct US aid into account in which is around $1.5 Billion under CSF , $1.5 Billion under kerry Luger and another $300 Million in flood aid.
But you forget another $5 billion/yr which come through IMF , WB , ADB in form of loans ..don't forget US has maximum number of votes in both IMF and WB..if they vote against you..you will never get these loans approved...or the present loans rescheduled.
In fact Pakistan's economy is floating, because of this inflow of money..otherwise it would have collapsed 3 yrs ago.