of Rio de Janeiro (private) are among the country's top institutions of higher education. Other institutes of higher learning include the Colégio Regina Coeli in Usina, notable for having its own narrow gauge funicular railway on its grounds. Primary schools are largely under municipal administration, while the state plays a more significant role in the extensive network of secondary schools. There are also a small number of schools under federal administration, as is the case of Pedro II School, Colégio de Aplicação da UFRJ and the Centro Federal de Educação Tecnológica of Rio de Janeiro (CEFET-RJ). In addition, Rio has an ample offering of private schools that provide education at all levels. Rio is home to many colleges and universities. The literacy rate for cariocas aged 10 and older is nearly 95 percent, well above the national average. In Rio, there were 1,033 primary schools with 25,594 teachers and 667,788 students in 1995. There are 370 secondary schools with 9,699 teachers and 227,892 students. There are 53 University-preparatory schools with 14,864 teachers and 154,447 students. The city has six major universities and 47 private schools of higher learning. Social issues There are significant disparities between the rich and the poor in Rio de Janeiro, and different socioeconomic groups are largely segregated into different neighborhoods. Although the city clearly ranks among the world's major metropolises, large numbers live in slums known as favelas, where 95% of the population are poor, compared to 40% in the general population. There have been a number of government initiatives to counter this problem, from the removal of the population from favelas to housing projects such as Cidade de Deus to the more recent approach of improving conditions in the favelas and bringing them up to par with the rest of the city, as was the focus of the "Favela Bairro" program and deployment of Pacifying Police Units. Rio has more people living in slums than any other city in Brazil, according to the 2010 Census. More than 1,500,000 people live in its 763 favelas, 22% of Rio's total population. São Paulo, the largest city in Brazil, has more favelas (1,020), but proportionally has fewer people living in favelas than Rio. Rio also has a large proportion of state-sanctioned violence, with about 20% of all killings committed by state security. In 2019, police killed an average of five people each day in the state of Rio