American Express Global Commercial Services reported December-quarter travel sales of $4.7 billion,

2 percent more than a year ago, and full-year 2011 sales of $19.6 billion, 12 percent more than in 2010. GCS cardholders charged $39.6 billion, 10 percent more than a year ago, with average per-card spending of $5,661, about 11 percent more than a year ago. Both figures are based on a total of 7 million cards in use, 100,000 fewer than in December 2010. For all of 2011, Amex said GCS billings were $154 billion, 16 percent more than 2010, with average basic cardmember spending of $21,898.