as reported [AR]
average [AV]
below detection limit [BL]
best estimate [BE]
less than [LT]
logical zero [LZ]
maximum [MX]
mean [MN]
median [MD]
minimum [MI]
more than [MT]
other value type [E]
trace [TR]
undecidable [UD]
unknown [N]
value type not known [X]
weighted [W]