There's no way to get exactly what you're looking for from TurboTax.
If you have a PDF of your most recent tax return with all forms and worksheets, the Tax History Report is a table that shows your AGI, federal tax, and other figures for the last five years, but only for your federal return. It does not show any state figures. The Tax History Report is near the beginning of the PDF. If you don't see it, do a Find for the word "history" (without the quotes) while you have the PDF open. The Tax History Report will only be complete if you consistently transferred your information from the previous year every time you started your tax return for a new year.
There are about a dozen different definitions of MAGI, depending on what it's being used for. So as DoninGA said, it is not one specific number.
