Current old institutions like the Oil Workers Union and the National Education Workers' Union ("Sindicato Nacional de Trabajadores de la Educación", or SNTE) are examples of how the use of government benefits are not being applied to improve the quality in the investigation of the use of oil or the basic education in Mexico as long as their leaders show publicly that they are living wealthily. With 1.4 million members, the teachers' union is Latin America's largest; half of Mexico's government employees are teachers. It controls school curriculums, and all teacher appointments. Until recently, retiring teachers routinely "gave" their lifelong appointment to a relative or "sell" it for anywhere in between $4,700 and $11,800.