Frequencies for first 10,000 rows of ser_tr variable in vehicle dataset : VIN SERIES | TRUCK | Freq. Percent Cum. ------------+----------------------------------- *** | 5,864 58.64 58.64 10S | 1 0.01 58.65 200 | 4 0.04 58.69 3/4 | 1 0.01 58.70 300 | 1 0.01 58.71 30S | 6 0.06 58.77 40S | 29 0.29 59.06 44P | 26 0.26 59.32 600 | 41 0.41 59.73 700 | 1 0.01 59.74 720 | 32 0.32 60.06 80S | 10 0.10 60.16 90S | 31 0.31 60.47 920 | 13 0.13 60.60 930 | 3 0.03 60.63 937 | 1 0.01 60.64 940 | 1 0.01 60.65 999 | 1,275 12.75 73.40 ACL | 1 0.01 73.41 ARO | 31 0.31 73.72 AST | 21 0.21 73.93 B20 | 11 0.11 74.04 B22 | 11 0.11 74.15 B23 | 1 0.01 74.16 B25 | 2 0.02 74.18 B26 | 7 0.07 74.25 B40 | 1 0.01 74.26 BUS | 1 0.01 74.27 BZR | 1 0.01 74.28 C/C | 2 0.02 74.30 C10 | 30 0.30 74.60 C15 | 9 0.09 74.69 C20 | 9 0.09 74.78 C25 | 1 0.01 74.79 C30 | 4 0.04 74.83 C35 | 4 0.04 74.87 C6V | 6 0.06 74.93 C96 | 8 0.08 75.01 C97 | 2 0.02 75.03 CAR | 2 0.02 75.05 CCH | 5 0.05 75.10 CD2 | 1 0.01 75.11 CGS | 1 0.01 75.12 CHA | 2 0.02 75.14 CHK | 64 0.64 75.78 CLT | 2 0.02 75.80 CNV | 6 0.06 75.86 COE | 46 0.46 76.32 COF | 338 3.38 79.70 COH | 3 0.03 79.73 COL | 12 0.12 79.85 COM | 4 0.04 79.89 CON | 327 3.27 83.16 CSC | 1 0.01 83.17 CSR | 1 0.01 83.18 CTS | 2 0.02 83.20 CTV | 21 0.21 83.41 CVS | 12 0.12 83.53 D10 | 1 0.01 83.54 D15 | 9 0.09 83.63 D20 | 7 0.07 83.70 D21 | 26 0.26 83.96 D30 | 4 0.04 84.00 D51 | 1 0.01 84.01 D5I | 6 0.06 84.07 D95 | 1 0.01 84.08 DAK | 48 0.48 84.56 DEF | 2 0.02 84.58 DEN | 2 0.02 84.60 DIS | 4 0.04 84.64 DRW | 7 0.07 84.71 ECO | 2 0.02 84.73 EXP | 1 0.01 84.74 FE4 | 1 0.01 84.75 FH1 | 1 0.01 84.76 FK5 | 1 0.01 84.77 FRR | 1 0.01 84.78 FRT | 5 0.05 84.83 FTR | 1 0.01 84.84 GCK | 49 0.49 85.33 GM4 | 225 2.25 87.58 H95 | 1 0.01 87.59 HFE | 1 0.01 87.60 HIC | 1 0.01 87.61 HOM | 2 0.02 87.63 HSG | 1 0.01 87.64 HTP | 106 1.06 88.70 INT | 1 0.01 88.71 JEE | 4 0.04 88.75 JMY | 7 0.07 88.82 K10 | 5 0.05 88.87 K15 | 9 0.09 88.96 K20 | 3 0.03 88.99 KOD | 1 0.01 89.00 L/M | 1 0.01 89.01 LB1 | 1 0.01 89.02 MAX | 1 0.01 89.03 MCV | 10 0.10 89.13 MHV | 10 0.10 89.23 MMX | 5 0.05 89.28 MRM | 1 0.01 89.29 NPR | 6 0.06 89.35 NRR | 1 0.01 89.36 P30 | 11 0.11 89.47 PCC | 2 0.02 89.49 PUP | 3 0.03 89.52 R/V | 9 0.09 89.61 R10 | 2 0.02 89.63 R15 | 4 0.04 89.67 R20 | 1 0.01 89.68 R25 | 2 0.02 89.70 R30 | 2 0.02 89.72 R35 | 1 0.01 89.73 R50 | 8 0.08 89.81 RAI | 3 0.03 89.84 RAL | 2 0.02 89.86 RC | 1 0.01 89.87 RMV | 44 0.44 90.31 RNG | 191 1.91 92.22 RPC | 114 1.14 93.36 RRV | 1 0.01 93.37 S | 142 1.42 94.79 S/V | 14 0.14 94.93 S10 | 3 0.03 94.96 S15 | 18 0.18 95.14 S6M | 2 0.02 95.16 SAF | 20 0.20 95.36 SAV | 1 0.01 95.37 SBS | 1 0.01 95.38 SIE | 81 0.81 96.19 SIL | 16 0.16 96.35 SON | 23 0.23 96.58 SRW | 16 0.16 96.74 SS | 10 0.10 96.84 STE | 3 0.03 96.87 T10 | 12 0.12 96.99 TAC | 44 0.44 97.43 TNS | 1 0.01 97.44 TOP | 4 0.04 97.48 TRK | 53 0.53 98.01 TSR | 1 0.01 98.02 TUN | 2 0.02 98.04 UDS | 1 0.01 98.05 UHT | 2 0.02 98.07 V15 | 6 0.06 98.13 V20 | 1 0.01 98.14 V35 | 2 0.02 98.16 VAN | 60 0.60 98.76 VFE | 2 0.02 98.78 VVN | 11 0.11 98.89 VWG | 2 0.02 98.91 W/T | 10 0.10 99.01 W/Y | 33 0.33 99.34 W15 | 1 0.01 99.35 W20 | 4 0.04 99.39 W30 | 2 0.02 99.41 W51 | 1 0.01 99.42 WAG | 5 0.05 99.47 WCN | 5 0.05 99.52 WHC | 3 0.03 99.55 WLC | 2 0.02 99.57 WRA | 4 0.04 99.61 X44 | 19 0.19 99.80 XCB | 7 0.07 99.87 XCN | 1 0.01 99.88 XCO | 1 0.01 99.89 XPD | 4 0.04 99.93 YUK | 7 0.07 100.00 ------------+----------------------------------- Total | 10,000 100.00 by Jean Roth , jroth@nber.org , 18 Apr 2016