bribery in the czech republic

this seems insane to me:

In the case of health care, 4 percent of Czechs have experienced bribery over a medical examination and 17 percent know about someone who met with a bribe.
Moreover, 5 percent of respondents experienced bribery when committing a traffic offence and 15 percent heard about it, the poll shows.
Up to 3 percent of respondents met with a bribe when a child was admitted to kindergarten, when passing an exam at a driving school, if they wanted a quick construction permit and in the case of results of a sport game.