 With the decline of tourism during the 20th century, the Pau economy (and its suburbs) gradually shifted towards the aviation industry and then to that of petrochemicals with the major discovery of the Lacq gas field in 1951.Pau today is a city of about 80,000 inhabitants, the main urban area of Pau and of the Communauté d'agglomération Pau Béarn Pyrénées with 30 neighbouring communes which carry out local tasks together.The Université de Pau et des Pays de l'Adour, founded in 1972, accounts for a large student population.