The results of the opinion poll were presented in the capital of Sarajevo on Friday, and they were almost the same as the results of a survey on the same matter which the TI conducted two years ago.
The new survey, which was supported by the European Union Mission in Sarajevo, covered 1,640 respondents representatively sampled.
The head of the TI branch office in Sarajevo, Boris Divjak, said that Bosnia was ranked between 70th and 75th on a list of 133 countries which the TI compiled starting with the worst corrupt states.
Some 42 percent of respondents believe that most political officials are corrupt, and 26.6 percent believe that all politicians are graft-ridden.
According to excerpts from the survey, cited by the Banja Luka media on Saturday, the most corrupt parties at the state level are the (Muslim) Party of Democratic Action (SDA) and the Serb Democratic Party (SDS).
Citing their own experience, respondents said policemen and doctors were the most 'venal', followed by municipal clerks, customs officers, teachers, tax collectors and university professors.
A majority of Bosnians say that the two worst problems in the country are unemployment and corruption, while political instability is cited as the third worst problem.