The judiciary has been singled out as the most corrupt of public institutions in Indonesia, while state pawnshops come out the cleanest, a survey by the country's antigraft body revealed Wednesday.

The integrity survey was conducted by the Corruption Eradication Commission (KPK) between June and September last year.

It involved 105 public service units at 40 ministries and institutions at the national level, and 52 at municipal and regency levels across 20 provinces.