Most schools in Namibia are state-run, but there are some private schools, which are also part of the country's education system. There are four teacher training universities, three colleges of agriculture, a police training college, and three universities: University of Namibia (UNAM), International University of Management (IUM) and Namibia University of Science and Technology (NUST). Namibia was ranked 104th in the Global Innovation Index in 2020, down from 101st in 2019.