Utah SSP 2017, 2018, 2019

This 2015 source states, "A State Supplemental payment equal to $15 shall be paid to a resident of a medical institution who receives a Supplemental Security Income (SSI) payment." https://rules.utah.gov/publicat/updt_zip/2015/uac15_08.pdf#page=118

This current source states the same thing, indicating that no change occurred and that the $15 payment remained in effect during 2017, 2018, and 2019.
https://adminrules.utah.gov/public/rule/R414-306/Current%20Rules
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Start by locating the Utah State Supplemental Security Income payment rules for 2017, 2018, and 2019 in the policy data. Compare the existing values with the linked 2015 and current Utah sources; done means the historical records reflect the documented $15 payment and the relevant tests pass.

Written by the indexing model from the issue text.