the most detailed industrial classification level of the Manufacturing Energy Consumption Survey of the Energy Information Administration, and (bb) data from the most recent Economic Census of the United States. (IV) Data not available for sector If data from the Manufacturing Energy Consumption Survey or Economic Census are unavailable for any sector at the 6-digit classification level in the NAICS, the Secretary may use available Manufacturing Energy Consumption Survey or Economic Census data pertaining to a broader industrial category classified in the NAICS. (V) Data not available for processing If data relating to the beneficiation or other processing (including agglomeration) of metal ores (including iron and copper ores, soda ash, or phosphate) are not available from the specified data sources, the Secretary— (aa) shall use the best available Federal or State government data, and (bb) may use, to the extent necessary, representative data submitted by entities that perform the beneficiation or other processing (including agglomeration), in making a determination. (ii) Imports and exports (I) In general The Secretary shall base the value of imports and exports under this subsection on United States International Trade Commission data. (II) Average data available The Secretary shall use the average of data from the three most recent years for which the data are available. (III) Average data not available If data from the United States International Trade Commission are unavailable for any sector at the 6-digit classification level in the NAICS, the Secretary may use United States International Trade Commission data pertaining to a broader industrial category classified in the NAICS. (iii) Percentages The Secretary shall round the greenhouse gas intensity and trade intensity percentages under subparagraph (A) to the nearest whole number. (iv) Greenhouse gas emission calculations When calculating the metric tons of carbon dioxide equivalent greenhouse gas emissions for each sector under subparagraph