ID       1-4      
 SAFSIBS  5-6      
 SEXSIB1  7-7      
 SEXSIB2  8-8      
 SEXSIB3  9-9      
 SEXSIB4  10-10    
 SEXSIB5  11-11    
 SEXSIB6  12-12    
 SEXSIB7  13-13    
 SEXSIB8  14-14    
 SEXSIB9  15-15    
 SEXSIB10 16-16    
 SEXSIB11 17-17    
 SEXSIB12 18-18    
 YRSIB1   19-22    
 YRSIB2   23-26    
 YRSIB3   27-30    
 YRSIB4   31-34    
 YRSIB5   35-38    
 YRSIB6   39-42    
 YRSIB7   43-46    
 YRSIB8   47-50    
 YRSIB9   51-54    
 YRSIB10  55-58    
 YRSIB11  59-62    
 YRSIB12  63-66    
 RELSIB1  67-67    
 RELSIB2  68-68    
 RELSIB3  69-69    
 RELSIB4  70-70    
 RELSIB5  71-71    
 RELSIB6  72-72    
 RELSIB7  73-73    
 RELSIB8  74-74    
 RELSIB9  75-75    
 RELSIB10 76-76    
 RELSIB11 77-77    
 RELSIB12 78-78    
 LIVSIB1  79-79    
 LIVSIB2  80-80    
 LIVSIB3  81-81    
 LIVSIB4  82-82    
 LIVSIB5  83-83    
 LIVSIB6  84-84    
 LIVSIB7  85-85    
 LIVSIB8  86-86    
 LIVSIB9  87-87    
 LIVSIB10 88-88    
 LIVSIB11 89-89    
 LIVSIB12 90-90    
 SELSIB1  91-92    
 SSIB1SEX 93-93    
 SSIB1BRN 94-97    
 SSIB1TYP 98-98    
 SSIB1HH1 99-99    
 SSIB1HH2 100-100  
 SSIB1EDU 101-102  
 SSIB1DEG 103-103  
 SSIB1WK1 104-104  
 SSIB1WK2 105-105  
 SSIB1WK3 106-106  
 SSIB1ML1 107-107  
 SSIB1ML2 108-108  
 SB1IND80 109-111  
 SB1OCC80 112-114  
 SB1CW    115-115  
 SB1IND90 116-118  
 SB1OCC90 119-121  
 SB1PREST 122-125  
 SB1TSEI  126-129  
 SB1TEDUC 130-133  
 SB1TEARN 134-137  
 SELSIB2  138-139  
 SSIB2SEX 140-140  
 SSIB2BRN 141-144  
 SSIB2TYP 145-145  
 SSIB2HH1 146-146  
 SSIB2HH2 147-147  
 SSIB2EDU 148-149  
 SSIB2DEG 150-150  
 SSIB2WK1 151-151  
 SSIB2WK2 152-152  
 SSIB2WK3 153-153  
 SSIB2ML1 154-154  
 SSIB2ML2 155-155  
 SB2IND80 156-158  
 SB2OCC80 159-161  
 SB2CW    162-162  
 SB2IND90 163-165  
 SB2OCC90 166-168  
 SB2PREST 169-172  
 SB2TSEI  173-176  
 SB2TEDUC 177-180  
 SB2TEARN 181-184