Frequencies for first 10,000 rows of ser_tr variable in person dataset : VIN SERIES | TRUCK | Freq. Percent Cum. ------------+----------------------------------- | 633 6.33 6.33 *** | 5,952 59.52 65.85 10S | 1 0.01 65.86 20S | 1 0.01 65.87 4/5 | 2 0.02 65.89 400 | 2 0.02 65.91 40S | 17 0.17 66.08 44P | 5 0.05 66.13 600 | 25 0.25 66.38 700 | 4 0.04 66.42 720 | 6 0.06 66.48 80S | 10 0.10 66.58 830 | 1 0.01 66.59 90S | 10 0.10 66.69 910 | 2 0.02 66.71 920 | 13 0.13 66.84 940 | 6 0.06 66.90 990 | 2 0.02 66.92 999 | 506 5.06 71.98 ARO | 6 0.06 72.04 AST | 5 0.05 72.09 AVL | 4 0.04 72.13 B20 | 2 0.02 72.15 B22 | 2 0.02 72.17 B23 | 1 0.01 72.18 B26 | 3 0.03 72.21 B30 | 1 0.01 72.22 B40 | 1 0.01 72.23 BRO | 3 0.03 72.26 C10 | 31 0.31 72.57 C15 | 21 0.21 72.78 C20 | 7 0.07 72.85 C25 | 8 0.08 72.93 C30 | 5 0.05 72.98 C55 | 2 0.02 73.00 C75 | 1 0.01 73.01 C96 | 1 0.01 73.02 CAL | 12 0.12 73.14 CAN | 3 0.03 73.17 CAR | 1 0.01 73.18 CCH | 3 0.03 73.21 CHA | 5 0.05 73.26 CHK | 64 0.64 73.90 CNV | 6 0.06 73.96 COE | 3 0.03 73.99 COF | 304 3.04 77.03 COH | 1 0.01 77.04 COL | 4 0.04 77.08 COM | 1 0.01 77.09 CON | 284 2.84 79.93 CSC | 1 0.01 79.94 CSR | 4 0.04 79.98 CTV | 24 0.24 80.22 D10 | 2 0.02 80.24 D15 | 5 0.05 80.29 D20 | 6 0.06 80.35 D21 | 14 0.14 80.49 DAK | 51 0.51 81.00 DEN | 5 0.05 81.05 DIS | 5 0.05 81.10 DRW | 38 0.38 81.48 E/X | 1 0.01 81.49 ECO | 21 0.21 81.70 ENV | 18 0.18 81.88 EPR | 4 0.04 81.92 ESC | 3 0.03 81.95 ETV | 1 0.01 81.96 EXP | 16 0.16 82.12 FCC | 1 0.01 82.13 FE6 | 1 0.01 82.14 FM2 | 2 0.02 82.16 FRR | 1 0.01 82.17 FRT | 25 0.25 82.42 G15 | 2 0.02 82.44 GCK | 105 1.05 83.49 GM4 | 194 1.94 85.43 HFB | 1 0.01 85.44 HOM | 2 0.02 85.46 HTP | 38 0.38 85.84 HUM | 7 0.07 85.91 JEE | 10 0.10 86.01 JMY | 11 0.11 86.12 K10 | 7 0.07 86.19 K15 | 5 0.05 86.24 K20 | 1 0.01 86.25 K25 | 6 0.06 86.31 LB1 | 1 0.01 86.32 LDS | 1 0.01 86.33 LIB | 20 0.20 86.53 LR3 | 5 0.05 86.58 LTC | 1 0.01 86.59 LUV | 1 0.01 86.60 MAX | 1 0.01 86.61 MCV | 6 0.06 86.67 MHV | 2 0.02 86.69 MMX | 3 0.03 86.72 NPR | 5 0.05 86.77 NQR | 5 0.05 86.82 P30 | 4 0.04 86.86 R/V | 6 0.06 86.92 R25 | 1 0.01 86.93 R30 | 2 0.02 86.95 R50 | 1 0.01 86.96 RMV | 10 0.10 87.06 RNG | 133 1.33 88.39 RPC | 189 1.89 90.28 S | 83 0.83 91.11 S/V | 36 0.36 91.47 S10 | 3 0.03 91.50 S15 | 10 0.10 91.60 SAF | 27 0.27 91.87 SAV | 1 0.01 91.88 SIE | 115 1.15 93.03 SIL | 237 2.37 95.40 SON | 20 0.20 95.60 SPX | 1 0.01 95.61 SRW | 114 1.14 96.75 SS | 4 0.04 96.79 STE | 7 0.07 96.86 STV | 4 0.04 96.90 T10 | 9 0.09 96.99 TAC | 43 0.43 97.42 TOP | 3 0.03 97.45 TRK | 42 0.42 97.87 TSR | 1 0.01 97.88 TTN | 23 0.23 98.11 TUN | 21 0.21 98.32 UDS | 1 0.01 98.33 VAN | 44 0.44 98.77 VFE | 1 0.01 98.78 VVN | 27 0.27 99.05 W/T | 14 0.14 99.19 W/Y | 10 0.10 99.29 W10 | 1 0.01 99.30 W15 | 4 0.04 99.34 W20 | 3 0.03 99.37 WCN | 5 0.05 99.42 WIN | 3 0.03 99.45 WRA | 5 0.05 99.50 X44 | 3 0.03 99.53 XCB | 1 0.01 99.54 XPD | 1 0.01 99.55 YUK | 45 0.45 100.00 ------------+----------------------------------- Total | 10,000 100.00 by Jean Roth , jroth@nber.org , 18 Apr 2016