If you lived in the state all year, then you would enter the amount in box 2a in box 14.
If box 2a is empty with box 2b checked, then you would need to determine whether there are any pre-tax contributions to your retirement account. If you are not aware of any pre-tax contributions (your custodian is required to leave that box blank if there were any rollovers to this account), then enter the amount in box 1 in boxes 2a and 14.
