A new report by an anti-corruption watchdog shows that on average, 30 percent of people in nine countries surveyed in the Middle East have had to pay a bribe to access some kind of public service.

The poll by Transparency International , released on Tuesday, also found that courts have the worst bribery record among six services it asked about.

The watchdog interviewed 11,000 people in nine Mideast countries and found bribery is especially huge in Yemen, with 77 percent of respondents in the impoverished country saying they have had to pay a bribe to access public services.

That figure was about 50 percent in Egypt, Sudan and Morocco. The poll, carried out in direct interviews at various times in 2014 and 2015, gave a 3 percent margin of error.