Which year's numbers (buying year OR rental year) do I look at while filling in property tax info?

I am trying to fill up the property tax info page. It asks me for land and improvement values. It also tells me to go the property tax page. I did this. There are rows-per-year on the tax page. Should I use the values from 2019 (when I bought the property) or 2024 (when I rented the property out for the first time)? Also I should look at the columns that say: - Taxable land value - Taxable IMPS value Correct? Thanks Arvind