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The statistical classification is a hierarchical arrangement of certain economic, social or demographic phenomena or processes. It follows the links of phenomena and processes from general to specific ones. The phenomena and processes are arranged and broken down usually to classes and subclasses, groups and subgroups, divisions and subdivisions. A higher level of the structure always breaks down into more detailed lower levels; there exists a logical hierarchy.
All valid statistical classifications are binding for the state statistical service authorities as well as reporting units providing data for statistical surveys carried out by the state statistical service. They are as follows:
These following classifications are only in Czech version: