VAR DSETNO NES DATASET NUMBER

VAR DSETNO    NES DATASET NUMBER                                              
              COLUMNS 3    - 11                                               
              CHARACTER (ALPHA)                                               
              NO MISSING DATA CODES

        NES DATASET NUMBER                                                    
        -------------------------------------------------------------------   
                                                                              
        1948.WT98                                                             
                                                                              
              This is the number used by NES to uniquely identify the         
              current Cumulative Data File dataset:  1948-1998                
                                                                              
              Unlike the ICPSR archive number (variable VCF0001), the NES     
              Dataset number changes when data from the latest NES time-series
              study are integrated with pre-existing Cumulative Data File data
              to produce a new dataset covering an expanded range of years.   
                                                                              
                                                                              
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