God it has been a while. I'm surprised no one helped you :(. Usually it goes something like an equal income distribution > More income to spend > More imports > Balance of payments is wack > Loss in external stability
Might as well start a thread like this to compare different estimations people got throughout the year.
BOS Estimate - 86-87 ( This was mid year )
Talent 100 2015 - 86
Dux - 85
Closest BOS member was Rathin :sun: