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With the fast development of China, more Chinese people leaving rural areas for cities for job or study opportunities, and the Putonghua Evaluation Exam (普通话水平测试) has quickly become popular. Many university graduates take this exam before looking for a job. Employers often require varying proficiency in Standard Chinese from applicants depending on the nature of the positions. Applicants of some positions, e.g. telephone operators, may be required to obtain a certificate. People raised in Beijing are sometimes considered inherently 1-A (一级甲等)(Error rate: lower than 3%) and exempted from this requirement.[citation needed] As for the rest, the score of 1-A is rare. According to the official definition of proficiency levels, people who get 1-B (Error rate: lower than 8%) are considered qualified to work as television correspondents or in broadcasting stations.[citation needed] 2-A (Error rate: lower than 13%) can work as Chinese Literature Course teachers in public schools.[citation needed] Other levels include: 2-B (Error rate: lower than 20%), 3-A (Error rate: lower than 30%) and 3-B (Error rate: lower than 40%). In China, a proficiency of level 3-B usually cannot be achieved unless special training is received. Even if many Chinese do not speak with standard pronunciation, spoken Standard Chinese is widely understood to some degree.