Boeing booked 135 net new orders in April, nearly matching its total in the first three months of the year, the company said on Tuesday. Through the first four months of the year, Boeing has booked 284 new orders after adjusting for cancellations and conversions. That is the highest total for that period since 2014. However, the U.S. planemaker trails European rival Airbus, which has booked 405 orders after cancellations and conversions through April 30. Airbus delivered 67 jets last month. Boeing delivered 47 jetliners in April, one more than the previous month. Deliveries are when customers hand over most of the cash for a new airplane, and so are closely tracked by investors.