In 2010, the total investment in real estate development was 4,826.7 billion yuan, up by 33.2% year-on-year. Of which, investment in commercial residential buildings reached 3,403.8 billion yuan, 32.9% of increase year-on-year, which occupied 70.5% of the investment in real estate development. In December, the completion of investment in real estate development totaled 557 billion yuan, increased 12.0%, year-on-year.