Frequencies for ser_tr variable in vehnit dataset : VIN SERIES | TRUCK | Freq. Percent Cum. ------------+----------------------------------- *** | 793 56.93 56.93 10S | 2 0.14 57.07 20S | 3 0.22 57.29 350 | 1 0.07 57.36 4/5 | 1 0.07 57.43 40S | 21 1.51 58.94 600 | 11 0.79 59.73 80S | 1 0.07 59.80 90S | 5 0.36 60.16 920 | 2 0.14 60.30 937 | 1 0.07 60.37 940 | 4 0.29 60.66 990 | 1 0.07 60.73 999 | 96 6.89 67.62 ACL | 1 0.07 67.70 ARO | 3 0.22 67.91 AST | 1 0.07 67.98 B25 | 1 0.07 68.05 B30 | 1 0.07 68.13 C10 | 3 0.22 68.34 C20 | 2 0.14 68.49 C25 | 2 0.14 68.63 C30 | 2 0.14 68.77 C35 | 2 0.14 68.92 C45 | 1 0.07 68.99 C50 | 1 0.07 69.06 C55 | 1 0.07 69.13 C60 | 2 0.14 69.27 CHA | 1 0.07 69.35 CHK | 7 0.50 69.85 CNV | 1 0.07 69.92 COE | 2 0.14 70.06 COF | 44 3.16 73.22 COL | 1 0.07 73.30 CON | 85 6.10 79.40 CSR | 1 0.07 79.47 CTV | 4 0.29 79.76 CVS | 4 0.29 80.04 CWS | 1 0.07 80.11 D21 | 2 0.14 80.26 DAK | 7 0.50 80.76 DEN | 1 0.07 80.83 DRW | 9 0.65 81.48 ECO | 3 0.22 81.69 ENV | 3 0.22 81.91 ESC | 2 0.14 82.05 EXP | 2 0.14 82.20 FE6 | 1 0.07 82.27 FE8 | 1 0.07 82.34 FM2 | 1 0.07 82.41 FRT | 4 0.29 82.70 GCK | 13 0.93 83.63 GM4 | 25 1.79 85.43 HTP | 4 0.29 85.71 HUM | 1 0.07 85.79 INT | 1 0.07 85.86 JMY | 2 0.14 86.00 K10 | 2 0.14 86.15 K15 | 1 0.07 86.22 K20 | 2 0.14 86.36 LDS | 1 0.07 86.43 LIB | 4 0.29 86.72 MAX | 1 0.07 86.79 MCV | 5 0.36 87.15 MHV | 4 0.29 87.44 NPR | 2 0.14 87.58 NQR | 1 0.07 87.65 P30 | 4 0.29 87.94 R/V | 1 0.07 88.01 R50 | 1 0.07 88.08 RAM | 1 0.07 88.16 RMV | 3 0.22 88.37 RNG | 10 0.72 89.09 RPC | 23 1.65 90.74 S | 14 1.01 91.74 S/V | 7 0.50 92.25 S10 | 1 0.07 92.32 S15 | 2 0.14 92.46 SAF | 2 0.14 92.61 SAV | 1 0.07 92.68 SCT | 1 0.07 92.75 SIE | 6 0.43 93.18 SIL | 24 1.72 94.90 SON | 3 0.22 95.12 SRW | 11 0.79 95.91 SS | 4 0.29 96.20 TAC | 8 0.57 96.77 TOP | 1 0.07 96.84 TRK | 2 0.14 96.98 TUN | 2 0.14 97.13 UDS | 2 0.14 97.27 UHT | 1 0.07 97.34 VAN | 13 0.93 98.28 VVN | 11 0.79 99.07 W/Y | 2 0.14 99.21 WCN | 1 0.07 99.28 WHC | 1 0.07 99.35 WIN | 2 0.14 99.50 XPD | 1 0.07 99.57 YUK | 6 0.43 100.00 ------------+----------------------------------- Total | 1,393 100.00 by Jean Roth , jroth@nber.org , 18 Apr 2016