It would have previous years in the 5-year Tax History if you transferred-in the file from last year.
Did your Personal Info and other comparison or carryover items from 2018 transfer into your 2019 return?
Are you using Online TurboTax (web version) or the desktop software (CD/download)?
If you're using Online TurboTax, the info from the prior year file should have transferred in automatically when you started your Online return IF you are in the SAME account as last year.
If you are using CD/download software, when you start a new return it would have searched your computer for the *.tax2018 data file. If it found it, it would have asked you if you want to transfer-in the file from last year. If it doesn't find it, there is a "browse" link to point TurboTax to the location of the prior-year data file.
