The level of corruption in Venezuela is very high by world standards and is prevalent throughout many levels of Venezuelan society. Discovery of oil in Venezuela in the early 20th century has worsened political corruption. The large amount of corruption and mismanagement in the country has resulted in severe economic difficulties, part of the crisis in Bolivarian Venezuela. According to Transparency International's 2021 Corruption Perception Index, Venezuela scored a 14 on a scale from 0 ("highly corrupt") to 100 ("highly clean"). When ranked by score, Venezuela ranks number 177 among the 180 countries in the Index, where the country ranked number 1 is perceived to have the most honest public sector.