Frequencies for first 10,000 rows of ser_tr variable in person dataset : VIN SERIES | TRUCK | Freq. Percent Cum. ------------+----------------------------------- | 666 6.66 6.66 *** | 6,044 60.44 67.10 10S | 2 0.02 67.12 200 | 1 0.01 67.13 20S | 1 0.01 67.14 30S | 3 0.03 67.17 4/5 | 2 0.02 67.19 40S | 10 0.10 67.29 44P | 8 0.08 67.37 450 | 2 0.02 67.39 550 | 1 0.01 67.40 600 | 26 0.26 67.66 700 | 2 0.02 67.68 70S | 1 0.01 67.69 720 | 4 0.04 67.73 80S | 6 0.06 67.79 90S | 8 0.08 67.87 910 | 4 0.04 67.91 920 | 14 0.14 68.05 937 | 1 0.01 68.06 940 | 9 0.09 68.15 990 | 4 0.04 68.19 999 | 402 4.02 72.21 ARO | 1 0.01 72.22 AST | 10 0.10 72.32 AVL | 10 0.10 72.42 B20 | 1 0.01 72.43 B22 | 5 0.05 72.48 B23 | 1 0.01 72.49 B25 | 1 0.01 72.50 B26 | 5 0.05 72.55 B30 | 2 0.02 72.57 B40 | 8 0.08 72.65 BLK | 2 0.02 72.67 BRO | 2 0.02 72.69 BVN | 2 0.02 72.71 C10 | 28 0.28 72.99 C15 | 10 0.10 73.09 C20 | 2 0.02 73.11 C25 | 2 0.02 73.13 C65 | 3 0.03 73.16 C6M | 1 0.01 73.17 C6V | 4 0.04 73.21 C75 | 2 0.02 73.23 CAL | 12 0.12 73.35 CAN | 2 0.02 73.37 CAR | 2 0.02 73.39 CHA | 10 0.10 73.49 CHK | 38 0.38 73.87 CLU | 4 0.04 73.91 CNV | 4 0.04 73.95 COE | 7 0.07 74.02 COF | 346 3.46 77.48 COL | 2 0.02 77.50 COM | 2 0.02 77.52 CON | 282 2.82 80.34 CSR | 7 0.07 80.41 CTV | 25 0.25 80.66 CVS | 5 0.05 80.71 D10 | 2 0.02 80.73 D15 | 3 0.03 80.76 D21 | 6 0.06 80.82 D30 | 3 0.03 80.85 D51 | 1 0.01 80.86 DAK | 54 0.54 81.40 DEN | 9 0.09 81.49 DIS | 7 0.07 81.56 DRW | 16 0.16 81.72 E/D | 1 0.01 81.73 ECO | 10 0.10 81.83 ENV | 11 0.11 81.94 EPR | 1 0.01 81.95 ETV | 1 0.01 81.96 EXP | 7 0.07 82.03 FCC | 1 0.01 82.04 FE6 | 3 0.03 82.07 FE8 | 1 0.01 82.08 FM2 | 6 0.06 82.14 FRT | 26 0.26 82.40 GCK | 122 1.22 83.62 GM4 | 195 1.95 85.57 HFD | 1 0.01 85.58 HFE | 1 0.01 85.59 HTL | 2 0.02 85.61 HTP | 27 0.27 85.88 HUM | 8 0.08 85.96 J/E | 1 0.01 85.97 JEE | 4 0.04 86.01 JMY | 14 0.14 86.15 K10 | 2 0.02 86.17 K15 | 11 0.11 86.28 K20 | 1 0.01 86.29 LIB | 13 0.13 86.42 LR3 | 1 0.01 86.43 MCV | 1 0.01 86.44 MHV | 2 0.02 86.46 MMX | 3 0.03 86.49 MRK | 2 0.02 86.51 NPR | 10 0.10 86.61 NQR | 2 0.02 86.63 P30 | 7 0.07 86.70 PUP | 1 0.01 86.71 R/V | 1 0.01 86.72 R10 | 1 0.01 86.73 R50 | 1 0.01 86.74 RID | 2 0.02 86.76 RMV | 11 0.11 86.87 RNG | 148 1.48 88.35 RPC | 177 1.77 90.12 S | 80 0.80 90.92 S/V | 22 0.22 91.14 S10 | 1 0.01 91.15 S15 | 6 0.06 91.21 SAF | 24 0.24 91.45 SAV | 11 0.11 91.56 SCT | 1 0.01 91.57 SIE | 120 1.20 92.77 SIL | 247 2.47 95.24 SON | 14 0.14 95.38 SPR | 1 0.01 95.39 SPT | 3 0.03 95.42 SRW | 120 1.20 96.62 SS | 3 0.03 96.65 STE | 7 0.07 96.72 STV | 3 0.03 96.75 T10 | 5 0.05 96.80 TAC | 84 0.84 97.64 TOP | 1 0.01 97.65 TRK | 14 0.14 97.79 TTN | 8 0.08 97.87 TUN | 49 0.49 98.36 UDS | 1 0.01 98.37 UHT | 3 0.03 98.40 VAN | 32 0.32 98.72 VMX | 3 0.03 98.75 VVN | 41 0.41 99.16 W/T | 17 0.17 99.33 W/Y | 6 0.06 99.39 W15 | 2 0.02 99.41 WAG | 4 0.04 99.45 WCN | 4 0.04 99.49 WIN | 2 0.02 99.51 X44 | 3 0.03 99.54 XCB | 1 0.01 99.55 XPD | 3 0.03 99.58 YUK | 42 0.42 100.00 ------------+----------------------------------- Total | 10,000 100.00 by Jean Roth , jroth@nber.org , 18 Apr 2016