NC92SM3B RECORD LAYOUT

             1992 MINERAL INDUSTRIES:  Type of Operation by Industry
                                        
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FIELD   TYPE SIZE   DESCRIPTION
NAME              
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GEOTYPE   C   1     Type of geography                                           
                      1    United States                           
ST        C   2     FIPS State code                                        (N/A)
TRADEKEY  C   1     Trade area/SIC division code          (N=Mineral Industries)
SICKEY    C   4     SIC code                                                    
YR        C   2     Reference year                                     (92 only)
OPERTYPE  C   3       Relative standard error of OPERTYP                     (%)
ESTAB     N   6     Number of establishments                                    
ESTABF    C   1       Flag for ESTAB                                            
EMP       N   8     Number of employees                                         
EMPF      C   1       Flag for EMP                                              
VALADD    N  10     Value added by mining  ($1,000)                             
VALADDF   C   1       Flag for VALADD                                           
--------            File sequence:  by SICKEY by OPERTYPE