Therefore, the emphasis is on the objectives listed above. The industries have high specialization ratios, and they are economically significant. This enhances the classification's suitability for sampling, data publishing and other aspects of survey operations. Finally, while disruptions to time series exist, they have been minimized. The classification achieves comparability for the three participating countries.
All countries agree on the detailed definitions of the industries.
The abbreviation NEC is used for Not Elsewhere Classified. Concrete Pipe Manufacturing for international comparability. Other Precast Concrete Product Manufacturing. Other Miscellaneous Nonmetallic Mineral Product Manufacturing. The combination was made because the 1987 SIC's were too small to warrant separation.