Languages of Catalonia
According to the official government of Catalonia, Catalan is the second most spoken language of the region, after Spanish (over 35% of Catalans use exclusively Catalan as their first language, while 11% of Catalans use equally both Catalan and Spanish). It is the most spoken language in many comarques of Catalonia, with the exception of the Barcelona metropolitan area (Barcelonès plus surrounding comarques) and Camp de Tarragona. Catalan is a compulsory subject in schools and enjoys equals rights with Spanish throughout Catalonia.
National and regional identity in Spain
As of 2011, 95% of the population were able to understand Catalan, and 73% could speak it. In 2007, 32% named Catalan as the primary language that they actually did speak, against 50% for Spanish (Castilian); 7% spoke the two languages equally. The ethnolinguistic composition of the population has been heavily affected by extensive immigration from non-Catalan speaking parts of Spain, much of it associated with rapid growth in industry, since the late 19th century and more particularly between 1950 and 1975.