LISBON, Portugal (AP) â¿¿ Tens of thousands of Portuguese are marching through towns and cities in annual commemorations of the 1974 Carnation Revolution, which ousted a four-decade dictatorship and installed democracy. In recent years the commemorations have targeted unpopular austerity measures enacted in return for the country's 78 billion euro ($101 billion) bailout in 2011. Many people are angered by the pay cuts and tax hikes that have contributed to the country's worst recession in almost 40 years and a jobless rate of 17.5 percent. A big and peaceful march along Lisbon's Avenida da Liberdade on Thursday featured banners demanding an end to austerity and the resignation of the center-right coalition government. The terms of the financial rescue initially won broad support, but the worsening economic situation has placed the government under increasing pressure.