Class or subclass of real property means a group of properties that share one or more characteristics typically common to all the properties in the class or subclass, but are not typically found in the properties outside the class or subclass. Class or subclass includes, but is not limited to, the classifications of agricultural land or horticultural land listed in section 77-1363, parcel use, parcel type, location, geographic characteristics, zoning, city size, parcel size, and market characteristics appropriate for the valuation of such land. A class or subclass based on market characteristics shall be based on characteristics that affect the actual value in a different manner than it affects the actual value of properties not within the market characteristic class or subclass.