Frequencies for first 10,000 rows of ser_tr variable in person dataset : VIN SERIES | TRUCK | Freq. Percent Cum. ------------+----------------------------------- | 763 7.63 7.63 *** | 6,017 60.17 67.80 150 | 2 0.02 67.82 30S | 1 0.01 67.83 400 | 3 0.03 67.86 40S | 7 0.07 67.93 44P | 14 0.14 68.07 600 | 41 0.41 68.48 620 | 7 0.07 68.55 720 | 34 0.34 68.89 80S | 5 0.05 68.94 830 | 2 0.02 68.96 90S | 23 0.23 69.19 920 | 7 0.07 69.26 930 | 9 0.09 69.35 937 | 2 0.02 69.37 999 | 463 4.63 74.00 ARO | 14 0.14 74.14 AST | 18 0.18 74.32 B20 | 13 0.13 74.45 B22 | 11 0.11 74.56 B23 | 2 0.02 74.58 B26 | 3 0.03 74.61 B30 | 3 0.03 74.64 BRO | 8 0.08 74.72 BUS | 1 0.01 74.73 BVN | 21 0.21 74.94 BZR | 1 0.01 74.95 C10 | 173 1.73 76.68 C15 | 32 0.32 77.00 C20 | 36 0.36 77.36 C25 | 13 0.13 77.49 C30 | 13 0.13 77.62 C35 | 6 0.06 77.68 C60 | 2 0.02 77.70 C65 | 3 0.03 77.73 C6M | 1 0.01 77.74 C6V | 3 0.03 77.77 C96 | 15 0.15 77.92 C97 | 3 0.03 77.95 CAR | 7 0.07 78.02 CCH | 4 0.04 78.06 CHK | 39 0.39 78.45 CLU | 4 0.04 78.49 CNV | 3 0.03 78.52 COE | 26 0.26 78.78 COF | 372 3.72 82.50 COL | 13 0.13 82.63 COM | 1 0.01 82.64 CON | 203 2.03 84.67 COU | 3 0.03 84.70 CSC | 1 0.01 84.71 CTV | 20 0.20 84.91 CVS | 4 0.04 84.95 D10 | 7 0.07 85.02 D15 | 17 0.17 85.19 D20 | 6 0.06 85.25 D21 | 41 0.41 85.66 D30 | 5 0.05 85.71 D51 | 6 0.06 85.77 D5I | 5 0.05 85.82 DAK | 33 0.33 86.15 FE4 | 1 0.01 86.16 FH1 | 1 0.01 86.17 FLS | 1 0.01 86.18 FSR | 1 0.01 86.19 FTR | 1 0.01 86.20 GBR | 1 0.01 86.21 GCK | 14 0.14 86.35 GM4 | 229 2.29 88.64 HFB | 1 0.01 88.65 HIC | 3 0.03 88.68 HTC | 1 0.01 88.69 HTP | 131 1.31 90.00 INT | 2 0.02 90.02 JEE | 27 0.27 90.29 JET | 1 0.01 90.30 JMY | 3 0.03 90.33 JN9 | 1 0.01 90.34 JPR | 2 0.02 90.36 K10 | 28 0.28 90.64 K15 | 6 0.06 90.70 K20 | 3 0.03 90.73 K25 | 1 0.01 90.74 K30 | 3 0.03 90.77 K35 | 2 0.02 90.79 KOM | 2 0.02 90.81 LCH | 2 0.02 90.83 LDS | 1 0.01 90.84 LLN | 4 0.04 90.88 LTC | 1 0.01 90.89 LUV | 4 0.04 90.93 MAX | 1 0.01 90.94 MHC | 3 0.03 90.97 MHV | 13 0.13 91.10 MMX | 3 0.03 91.13 MRM | 5 0.05 91.18 NPR | 5 0.05 91.23 P30 | 5 0.05 91.28 P62 | 1 0.01 91.29 PUP | 10 0.10 91.39 R/V | 12 0.12 91.51 R10 | 2 0.02 91.53 R15 | 8 0.08 91.61 R20 | 1 0.01 91.62 R30 | 1 0.01 91.63 R50 | 11 0.11 91.74 RAI | 3 0.03 91.77 RAM | 1 0.01 91.78 RBT | 2 0.02 91.80 RMV | 31 0.31 92.11 RNG | 141 1.41 93.52 ROY | 1 0.01 93.53 RPC | 42 0.42 93.95 RRV | 1 0.01 93.96 RX | 1 0.01 93.97 S | 134 1.34 95.31 S/V | 42 0.42 95.73 S10 | 2 0.02 95.75 S15 | 24 0.24 95.99 SAF | 15 0.15 96.14 SBS | 1 0.01 96.15 SCT | 4 0.04 96.19 SIE | 91 0.91 97.10 SON | 9 0.09 97.19 SPT | 2 0.02 97.21 SS | 12 0.12 97.33 SXD | 4 0.04 97.37 T10 | 6 0.06 97.43 TAC | 14 0.14 97.57 TNS | 1 0.01 97.58 TOP | 2 0.02 97.60 TRK | 59 0.59 98.19 UDS | 4 0.04 98.23 UHT | 3 0.03 98.26 V10 | 2 0.02 98.28 V15 | 1 0.01 98.29 V35 | 4 0.04 98.33 VAN | 99 0.99 99.32 VMX | 1 0.01 99.33 VWG | 9 0.09 99.42 W/T | 1 0.01 99.43 W/Y | 13 0.13 99.56 W10 | 1 0.01 99.57 W15 | 1 0.01 99.58 W20 | 6 0.06 99.64 W30 | 4 0.04 99.68 WAG | 6 0.06 99.74 WCN | 6 0.06 99.80 WHC | 2 0.02 99.82 WLC | 1 0.01 99.83 WRA | 2 0.02 99.85 X44 | 5 0.05 99.90 XCB | 7 0.07 99.97 YUK | 3 0.03 100.00 ------------+----------------------------------- Total | 10,000 100.00 by Jean Roth , jroth@nber.org , 18 Apr 2016