What does the suppressed column mean in the output?

The suppressed columns indicate one or more entries included in the aggregate did not have its first unit of quantity data reported. This could be because it was redacted by Census in the publication of official import statistics or the importers in question failed to provide data for the first unit of quantity. Only aggregations where a first unit of quantity was required according to the HTSUS (for imports) or Schedule B (for exports) are flagged.