When normal value is established at a level of trade which constitutes a more advanced stage of distribution than the level of trade of the constructed export price, but the data available do not provide an appropriate basis to determine under subparagraph (A)(ii) a level of trade adjustment, normal value shall be reduced by the amount of indirect selling expenses incurred in the country in which normal value is determined on sales of the foreign like product but not more than the amount of such expenses for which a deduction is made under section
1677a
(d)(1)(D) of this title.