ID       1-4      
 HAVSIBS  5-5      
 ELIGSIBS 6-6      
 INTERV   7-7      
 WHYNOT   8-8      
 SAFAGE   9-10     
 DAY      11-12    
 MONTH    13-14    
 YEAR     15-16    
 SAFSEX   17-17    
 SAFRACE  18-18    
 REGNOW   19-20    
 STATENOW 21-22    
 STATE16  23-24    
 URBAN16  25-25    
 SAMECITY 26-26    
 RENTOWN  27-27    
 HHSIZE   28-29    
 NOTREL   30-31    
 NUMEARN  32-33    
 BORNUSA  34-34    
 PARUSA   35-36    
 GPARUSA  37-37    
 ORIGIN   38-39    
 ORIGIN1  40-41    
 ORIGIN2  42-43    
 ORIGIN3  44-45    
 PREFNOW  46-46    
 PROTNOW  47-48    
 JEWNOW   49-49    
 HOWFAITH 50-50    
 SERVFRQ1 51-53    
 SERVFRQ2 54-54    
 PREFTHEN 55-55    
 PROTTHEN 56-57    
 JEWTHEN  58-58    
 HHOLD16A 59-60    
 HHOLD16B 61-61    
 MARSTAT  62-62    
 AGEMAR1  63-64    
 AGEMARCR 65-66    
 BROKEDIV 67-67    
 BROKEWID 68-68    
 NUMMAR   69-69    
 SAFREDUC 70-71    
 SAFRDEGR 72-72    
 ENDSCH   73-76    
 MILSERV  77-77    
 MILNOW   78-78    
 MILITIN  79-82    
 MILITOUT 83-86    
 EMPLSTAT 87-88    
 NUMHRS1  89-90    
 NUMHRS2  91-92    
 WORKEVER 93-93    
 WEEKS93  94-95    
 FTORPT93 96-96    
 UNEMP1   97-97    
 UNEMP2   98-99    
 DATEJOB1 100-103  
 FRST80I  104-106  
 FRST80O  107-109  
 FRSTCOW  110-110  
 FRST90I  111-113  
 FRST90O  114-116  
 FRSTPRES 117-120  
 FRSTTSEI 121-124  
 FRSTEDUC 125-128  
 FRSTEARN 129-132  
 CLOC80I  133-135  
 CLOC80O  136-138  
 CLOCCOW  139-139  
 CLOC90I  140-142  
 CLOC90O  143-145  
 CLOCPRES 146-149  
 CLOCTSEI 150-153  
 CLOCEDUC 154-157  
 CLOCEARN 158-161  
 EMPLSIZE 162-166  
 RSUP1    167-167  
 RSUP2    168-168  
 RSUP3    169-169  
 RSUP4    170-170  
 RUNION   171-171  
 SAFREARN 172-178  
 FAMINC   179-185  
 WAIS1    186-186  
 WAIS2    187-187  
 WAIS3    188-188  
 WAIS4    189-189  
 WAIS5    190-190  
 WAIS6    191-191  
 WAIS7    192-192  
 WAIS8    193-193  
 WAIS9    194-194  
 WAIS10   195-195  
 WAIS11   196-196  
 WAISPATH 197-197