We are aggressively pursuing many tracks to grow the total number of hotel rooms in our system, including investing in our brand's market position, focusing on multi-deal contracts, both for conversion and new construction, and increasing retention of our existing franchisees. Essential to all of our strategies is improving our system contribution and the resulting value proposition to our franchisees. We will achieve this primarily through the Apollo initiatives, which we have spoken about before. We've made significant progress over the past 2 years with one of our key Apollo initiatives, brand.com. Revenue and room nights across the brand portfolio are up approximately 20% from this channel year-to-date, in part due to improved content and web functionality.
On the international front, over the next 4 years, we -- excuse me, over the next 5 years, we expect annual system size growth of 8% in EMEA, 15% in Latin America, and our highest growth market will be APAC, where we expect our system size to almost double by 2016. This is from an exceptionally strong base in the region, particularly in China where we have close to 60,000 rooms. The long term vision is to have a footprint in China that rivals our presence in the U.S. We are also seeking to grow in India and other countries such as Singapore and Thailand on an opportunistic basis.