In 2005, MAS suffered yet another period of unprofitability, reporting a loss of RM1.3 billion. Revenue for the financial period was up by 10.3% or RM826.9 million, compared to the same period for 2004, driven by a 10.2% growth in passenger traffic. International passenger revenue increased by RM457.6 million or 8.4%, to RM5.9 billion, while cargo revenue decreased by RM64.1 million or 4.2%, to RM1.5 billion. Costs increased by 28.8% or RM2.3 billion, amounting to a total of RM 10.3 billion, primarily due to escalating fuel prices. Other cost increases included staff costs, handling and landing fees, aircraft maintenance and overhaul charges, Widespread Assets Unbundling (WAU) charges and leases.