Low-cost carrier Ryanair on Monday reported its best-ever annual profit, as passenger and revenue growth offset sharply higher operating costs.The Dublin-based firm said full-year profit after tax jumped 34% to 1.92 billion euros ($2.09 billion), and announced a 700-million-euro share buyback program.Revenue rose 25% year-on-year to 13.44 billion euros as the airline served 184 million passengers, 23% more than before the Covid pandemic.These higher traffic numbers and an increase in fares helped Ryanair ov ...