(Reuters) - Boeing Co reported its worst annual net orders in decades on Tuesday, along with its lowest numbers for plane deliveries in 11 years, as the grounding of its 737 MAX jet saw it fall far behind main competitor Airbus. Allowing for cancellations and changes to earlier orders, Chicago-based Boeing said it had received just 54 new orders for planes in 2019 and delivered less than half as many as a year earlier, losing the top spot to its European rival for the first time in eight years...