Operating revenues for the company increased 5.9% to $14.36 billion in 2006 compared to $13.55 billion in 2005. Earnings were $1.573 billion, down 1.1% from $1.591 billion in the previous year. Basic and diluted earnings per share declined slightly from 2005 levels. The company's return on average common equity fell to 14.26% in 2006 from 15.17% in 2005. Total assets and market value of common stock both increased by over 7% year-over-year.