Secondary education consists of three tracks: general, vocational/technical and the dual-system vocational education known as Mubarak-Kohl schools. The general secondary stage includes 3 years of education, whereas the secondary vocational track could last for 3–5 years. To enter the secondary level, students must pass a national exam which is given at end of the preparatory stage. As of year 2004, the 77.3 percent of students completing preparatory stage are estimated to be enrolled in secondary education. So far, efforts are underway with the support of multilateral organizations to make the general and vocational secondary system less rigid and provide equal opportunities to students of various wealth quintiles in the two tracks to opt for higher education. This is also being implemented by the World Bank led secondary enhancement project in Egypt.