Hotels around the world reported year-over-year improvements in their January numbers, according to data just released by Smith Travel Research. The Americas region posted a 5.6 percent occupancy increase, led by San Francisco with an 11.2 percent rise. Buenos Aires, Argentina, followed with a 10.4 percent uptick; and Sao Paolo, Brazil, was up by 10.2 percent. Average daily rate was up across the region by 3.1 percent -- led by Sao Paolo, with an increase of nearly 31 percent -- and revenue per available room rose 9 percent. Again, Sao Paolo led the way with a 44.3 percent surge. Elsewhere, in the Asia Pacific region, January occupancy remained flat compared to last year (a 0.2 percent increase), while ADR shot up by 14.6 percent and RevPAR climbed by 14.9 percent. In Europe, a 3.9 percent occupancy increase was complemented by a 3.7 percent climb in ADR and a RevPAR increase of 7.7 percent. The Middle East/Africa region was similarly active, reporting increases of 6.2 percent in occupancy and 4.6 percent in ADR, for an 11.2 percent rise in RevPAR.