Frequencies for ser_tr variable in vehnit dataset : VIN SERIES | TRUCK | Freq. Percent Cum. ------------+----------------------------------- *** | 709 53.39 53.39 10S | 2 0.15 53.54 300 | 1 0.08 53.61 40S | 18 1.36 54.97 600 | 11 0.83 55.80 700 | 1 0.08 55.87 70S | 2 0.15 56.02 80S | 2 0.15 56.17 90S | 5 0.38 56.55 920 | 3 0.23 56.78 940 | 2 0.15 56.93 999 | 86 6.48 63.40 ARO | 2 0.15 63.55 AST | 2 0.15 63.70 AVL | 1 0.08 63.78 B20 | 1 0.08 63.86 B22 | 1 0.08 63.93 B23 | 2 0.15 64.08 B30 | 1 0.08 64.16 BVN | 1 0.08 64.23 C10 | 1 0.08 64.31 C30 | 1 0.08 64.38 C35 | 1 0.08 64.46 C55 | 3 0.23 64.68 C65 | 1 0.08 64.76 C75 | 1 0.08 64.83 CAL | 1 0.08 64.91 CHK | 2 0.15 65.06 CLT | 1 0.08 65.14 COE | 2 0.15 65.29 COF | 64 4.82 70.11 COL | 3 0.23 70.33 CON | 73 5.50 75.83 CSR | 5 0.38 76.20 CTV | 7 0.53 76.73 D15 | 1 0.08 76.81 DAK | 11 0.83 77.64 DIS | 3 0.23 77.86 DRW | 15 1.13 78.99 ECO | 5 0.38 79.37 ENV | 2 0.15 79.52 ESC | 1 0.08 79.59 FCC | 1 0.08 79.67 FE8 | 1 0.08 79.74 FH2 | 1 0.08 79.82 FM2 | 4 0.30 80.12 GCK | 21 1.58 81.70 GM4 | 22 1.66 83.36 HIN | 1 0.08 83.43 HTP | 2 0.15 83.58 HUM | 1 0.08 83.66 JEE | 1 0.08 83.73 JMY | 1 0.08 83.81 K10 | 1 0.08 83.89 K15 | 2 0.15 84.04 KOD | 1 0.08 84.11 LIB | 4 0.30 84.41 LTC | 1 0.08 84.49 M/T | 1 0.08 84.56 MCV | 3 0.23 84.79 MHV | 3 0.23 85.02 MON | 1 0.08 85.09 MRK | 1 0.08 85.17 NPR | 4 0.30 85.47 NQR | 1 0.08 85.54 PYS | 1 0.08 85.62 R/V | 1 0.08 85.69 RAM | 2 0.15 85.84 RMV | 6 0.45 86.30 RMW | 2 0.15 86.45 RNG | 13 0.98 87.42 RPC | 28 2.11 89.53 RRV | 1 0.08 89.61 S | 12 0.90 90.51 S/V | 1 0.08 90.59 S10 | 1 0.08 90.66 S15 | 2 0.15 90.81 SAF | 4 0.30 91.11 SAV | 1 0.08 91.19 SCT | 1 0.08 91.27 SIE | 11 0.83 92.09 SIL | 27 2.03 94.13 SON | 1 0.08 94.20 SRW | 14 1.05 95.26 SS | 1 0.08 95.33 STE | 6 0.45 95.78 STV | 1 0.08 95.86 T10 | 1 0.08 95.93 TAC | 8 0.60 96.54 TOP | 1 0.08 96.61 TRK | 2 0.15 96.76 TUN | 6 0.45 97.21 UDS | 1 0.08 97.29 UHT | 2 0.15 97.44 V10 | 1 0.08 97.52 V15 | 1 0.08 97.59 VAN | 7 0.53 98.12 VTR | 1 0.08 98.19 VVN | 10 0.75 98.95 VVT | 1 0.08 99.02 W/Y | 1 0.08 99.10 WAG | 1 0.08 99.17 WIN | 5 0.38 99.55 WRA | 1 0.08 99.62 X44 | 1 0.08 99.70 YUK | 4 0.30 100.00 ------------+----------------------------------- Total | 1,328 100.00 by Jean Roth , jroth@nber.org , 18 Apr 2016