Eight in 10 Hongkongers say they would be willing to report corruption – a record high since the question was introduced nine years ago into an annual poll by the city’s anti-graft agency.

Research released by the Independent Commission Against Corruption (ICAC) on Friday showed 81.7 per cent of 1,518 respondents said they would report a case of corruption if they saw one.

Those aged 15 to 34 were most likely to tell authorities, with more than 85 per cent in this age group saying they would.

The remaining 12.9 per cent said whether they filed a report would depend on the circumstances. Only 3.1 per cent admitted they would not take any action, citing personal and family safety.

The ICAC said the 3.1 per cent figure was the lowest recorded in nine years.

The survey was carried out between April 30 and August 13 last year. It was first conducted in 1992 as a telephone poll, but researchers began visiting homes from 2010.