暗あん数すう

noun

dark figure; hidden figure; unreported cases

Technical term used in criminology and statistics for the gap between actual and officially recorded incidents, especially unreported crimes.

• 犯はん罪ざい統とう計けいでは、暗あん数すうが非ひ常じょうに大おおきいと言いわれている。

  It is said that the dark figure is very large in crime statistics.

• 暗あん数すうを含ふくめると、実じっ際さいの被ひ害がい件けん数すうはもっと多おおい。

  When the dark figure is included, the actual number of incidents is much higher.