Corruption in Venezuela is high by world standards and was so for much of the 20th century. The discovery of oil had worsened political corruption, and by the late 1970s, Juan Pablo Pérez Alfonso's description of oil as "the Devil's excrement" had become a common expression in Venezuela. Venezuela has been ranked one of the most corrupt countries on the Corruption Perceptions Index since the survey started in 1995. The 2010 ranking placed Venezuela at number 164, out of 178 ranked countries in government transparency. By 2016, the rank had increased to 166 out of 178. Similarly, the World Justice Project ranked Venezuela 99th out of 99 countries surveyed in its 2014 Rule of Law Index.