The Primera División of the Liga Nacional de Fútbol Profesional, commonly known in the English-speaking world as La Liga, and officially named for sponsorship reasons Liga BBVA is the top professional association football division of the Spanish football league system. It is contested by 20 teams, with the three lowest placed teams relegated to the Segunda División and replaced by the top two teams in that division plus the winner of a play-off. A total of 59 teams have competed in La Liga, nine of which have been crowned champions. Since the 1950s, Real Madrid and Barcelona have dominated the championship. Real Madrid have won the title a record 32 times and Barcelona 22 times. During the 1930s and 1940s and in the last two decades, however, La Liga has seen other champions, including, Atlético Madrid, Athletic Bilbao, Valencia, Real Sociedad, Deportivo, Real Betis, and Sevilla.
La Liga is the strongest league in Europe over the past five years, according to UEFA's league coefficient. La Liga is one of the most popular professional sports leagues in the world, with an average attendance of 30,275 for league matches in the 2011–12 season. This is the fifth-highest of any domestic professional sports league in the world and the third-highest of any professional association football league in the world, behind the German Bundesliga and English Premier League.