CEInet Statistics Databases aggregate raw data source from different official units, reprocess, reorganize and reformat them by time series. The Databases gather all of historical data and various subjects to be searchable, query, available and accessible, with tools to export tables and graphics, professionals with consulting and expertises to help statistical analysis. The official departments of statistics have different responsibilities for regular releases on the latest updates that do not provide with all of historical data in a full worksheet and with comparable data by different divisions and layers (e.g. region, sector, ownership, etc).

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　　高级查询指在查询过程中，可以一次性输入一个或多个查询条件进行检索或二次检索得到备选指标。高级查询检索中用到与、或、非等逻辑运算符。在查询系统中'&'表示“与”关系、'+'表示“或”关系、'!' 表示“非”。

与关系：“钢&铁” ——检索出的指标名称中同时包含“钢”和“铁”两个独立字段，如：“钢铁出口额”、“铁道钢材产量”等等。

或关系：“钢+铁” ——检索出的指标名称中包含字段“钢”或者“铁”，满足其一即可，如：“生铁产量”、“成品钢材产量”、“钢铁板材出口额”等等。

非关系：“钢!铁” ——检索出的指标名称中包含字段“钢”，但不包含字段“铁”，如：“钢带产量”、“成品钢材产量”等等。

　　

Since the year of 2004, the monthly fixed-asset investment statistic is changed to refer to urban figures (incl. private-owned, individual investors and other various ownership with investment worth RMB 500,000 above as well as private-invested housing construction in mining areas). Befor that, old classificaiton coverage refers to state-owned and other ownerships.

The National Bureau of Statistics (NBS) released the latest updates in accordance with new classificaiton, that merely compared the figures for 2003 with old and new clssification, but no comparable figures available in earlier years. In view of that, CEInet Databse remain to be old mnemonics (titled "old") accessible; meanwhile, the addes in line with new classification are available from the year of 2003.

According to the official statistical rules in China, the figures of industrial sectors, investment and real estate for January are not collected; fiscal revenue and expenditures for December are not collected.