Actually you don't need cheat codes to backcheck that. You can transform back to the imperial form and then look at the Stats & Graphs again, in fact, you can revert this on the same turn, of course.
If you wanna find out how you got these 76/86 completely simply open your Tech tree and control which Econ-enhancing techs are already researched. Next, the governmental form does add to it, and probably your racial points spend. If you got some minor 1% or 2% etc difference then this is due to anomalies.
One thing. After researching Interstellar Rep/Democracy/Federation the game is always prompting you to change to this form. Of course you'll take this offering always. And it should stay there, but if you play with the autosave-feature, then be cautious and control (after reloading) if the governmental form is still the most up-to-date.