The length of education refers to the number of years a person has received education in a specific education system. It is an important index to measure a person's education level, and it also reflects the input of educational resources and the education level of society. The length of education is closely related to personal knowledge, skills, career development and social status.

With the development of society, the number of years of education is constantly extending, which also reflects people's great attention to education and the demand for higher-quality personnel training. Therefore, to ensure the authenticity of information, years of education is one of the important indicators to evaluate the education level of a country or region.