Securities investments for which the national association of insurance commissioners has not published valuation standards in its valuations of securities manual, or any successor publication, shall be valued as follows:
Any other investment, including real property, for which the national association of insurance commissioners has not published valuation standards shall be valued in accordance with the rules adopted by the superintendent under division (C) of this section. Such an investment shall not be valued at more than its purchase price, except that an investment that has been affected by a permanent decline in value shall be valued at not more than its market value. With respect to real property, purchase price includes capitalized permanent improvements, less depreciation spread evenly over the life of the property.
R.C. §3907.20