The Academy of Athens, founded in 1926, oversees the activities of research institutes in astronomy and applied mathematics and in atmospheric physics and climatology. Greece has five other scientific research institutes. Specialized scientific learned societies include the Association of Greek Chemists, founded in 1924, and the Greek Mathematical Society, founded in 1918, both headquartered in Athens. Advanced scientific and technical training is provided at nine colleges and universities. The University of Athens has maintained a zoological museum since1858. In 1987–97, science and engineering students accounted for 26% of university enrollment. In the early 1980s, the government established a Ministry of Research and Technology to foster scientific and technological development. Greece had 733 scientists and engineers and 314 technicians per million people engaged in research and development in 1987–97; total expenditures on research and development amounted to 0.5% of GNP.