It is estimated that 2.1 million children do not attend school in Mexico. According to the most recent available government statistics the average student now spends an average of six years in school. All students are required to purchase school materials. For the poorest people this means that a chance for education is over before it starts. For the indigenous population the statistics are even worse. More than 40% of the Indian population over 15 years of age are illiterate. This is more than three times the national rate. The future is not much brighter. Thirty percent of the indigenous children between the ages of six and fourteen do not attend school. In all of Mexico there is a huge educational discrepancy between the social classes, with the poorest 10% of the children averaging 2.1 years of school, while the richest 10% averages 12.1 years of school. Also, Indian life expectancy, infant survival rates, and income levels are all much lower than non-Indian levels.