~1~^~Analytical or derived from analytical~ ~4~^~Calculated or imputed~ ~5~^~Value manufacturer based label claim for added nutrients~ ~6~^~Aggregated data involving combinations of source codes 1 &12~ ~7~^~Assumed zero~ ~8~^~Calculated from nutrient label by NDL~ ~9~^~Calculated by manufacturer, not adjusted or rounded for NLEA~ ~11~^~Aggregated data involving comb. of codes other then 1,12 or6~ ~12~^~Manufacturer's analytical; partial documentation~ ~13~^~Analytical data from the literature, partial documentation~