A new report by Jones Lang LaSalle says the total number of rooms in Dubai will grow to 54,751 by 2012, a jump of 17% from 46,886 (existing plus future supply) in 2010. The report also said that revenue per available room (RevPAR) in Dubai was bottoming out in February this year. The study divided the RevPAR from different Mena regions into four categories. While Riyadh, Abu Dhabi and Doha were displayed under 'RevPAR Falling', only Dubai fell under 'RevPAR Bottoming out', reported Emirates Business.