How do you define INPUT and OUTPUT? If your input and output is defined by the GDP equation, see attached excel file produced by the IMF containing data from 1980 - 2014. the output is the country's GDP and the input are various components in that subject column that would fit C + I + G + net trade. I hope this is helpful. Cheers.
The EORA multi-regional input-output database (http://worldmrio.com) contains 25x25 IOTs for Pakistan covering the period 1990-2011. I am not sure which is their primary source though. That is something you would have to look for in the documentation. Cheers.
You must see the B.O.P. account details of the Pakistan related to that specific year. B.O.P. account ( balance of payment) reflects actual situation of the country about each and every aspect(s).
Thanks to all.........Arkaitz_Usubiaga I got from EORA multi regional input output data base and grateful for sharing. Do you have experience of input-output modelling.... ?