The following percentages apply to the full cash value or limited valuation, as applicable, as a basis for determining the assessed valuation of class two property described in section 42-12002:
1. Class two (R): sixteen percent through December 31, 2015 and fifteen percent beginning from and after December 31, 2015.
2. Class two (P): sixteen percent through December 31, 2015, and fifteen percent beginning from and after December 31, 2015, of the value exceeding the maximum amount of valuation of personal property that is exempt from taxation pursuant to section 42-11127.
3. Class two (C): fifteen percent.