It depends on the reason for non estimation. If “Pit-Storage” was not estimated because there is not this type of activity in the country indicated in this table, it is appropriate to put “NO” for these specific cases. If the cause of not estimation is due to the use of a different nomenclature in the country to characterize activities (see example with a table of previous question), then it is appropriate to put “NA” for these specific cases. Only if the cause of not estimation of these products is because there is not data to estimate, it is Ok to use FX according to flexibility provision indicated in paragraph 48 of the MPGs.