The central government used 55.1 billion yuan to develop low-income housing projects, a two-fold increase over the previous year.
中央财政安置保证安居工程补助资金551亿元,比上年增长倍。
When the surgeon general issued a 「call to action」 on childhood obesity in 2001, about 13 percent of children were obese, a more than two-fold increase from the previous 20 years.