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- University of Michigan. China Data Center6
- Beijing Hua tong ren shi chang xin xi you xian ze ren gong si5
- China. Guo jia tong ji ju5
- Zhonghua di tu xue she4
- All China Marketing Research Co.1
- Environmental Systems Research Institute (Redlands, Calif.)1
- TomTom North America, Inc.1
- US Census Bureau1
- United States. Bureau of the Census1