Values in this raster layer represent a scaled index score which corresponds to the relative importance of a given land parcel in regard to the presence of buildings identified as 'Agricultural' as captured in the state assessor's database. Parcels identified as containing buildings with this categorization were then scaled from 0 to 1, with a value of 1 representing the oldest building, and values decreasing for parcels with newer buildings. The grid is a normalized, unit-less index with values ranging from 0 (low importance) to 1 (high importance). This raster is one of 9 inputs used to calculate the "Normalized Importance Index."