Frequencies for first 10,000 rows of ser_tr variable in person dataset : VIN SERIES | TRUCK | Freq. Percent Cum. ------------+----------------------------------- | 683 6.83 6.83 *** | 6,037 60.37 67.20 200 | 1 0.01 67.21 20S | 3 0.03 67.24 30S | 2 0.02 67.26 40S | 10 0.10 67.36 44P | 19 0.19 67.55 600 | 33 0.33 67.88 620 | 4 0.04 67.92 70S | 1 0.01 67.93 720 | 10 0.10 68.03 80S | 3 0.03 68.06 90S | 18 0.18 68.24 910 | 1 0.01 68.25 920 | 10 0.10 68.35 940 | 2 0.02 68.37 990 | 4 0.04 68.41 999 | 485 4.85 73.26 ARO | 14 0.14 73.40 AST | 43 0.43 73.83 AVL | 3 0.03 73.86 B20 | 1 0.01 73.87 B22 | 4 0.04 73.91 B23 | 2 0.02 73.93 B25 | 5 0.05 73.98 B26 | 3 0.03 74.01 B30 | 7 0.07 74.08 B40 | 1 0.01 74.09 BRO | 4 0.04 74.13 BVN | 2 0.02 74.15 C10 | 31 0.31 74.46 C15 | 17 0.17 74.63 C20 | 9 0.09 74.72 C25 | 13 0.13 74.85 C30 | 4 0.04 74.89 C35 | 2 0.02 74.91 C60 | 2 0.02 74.93 C65 | 1 0.01 74.94 C6V | 2 0.02 74.96 C96 | 1 0.01 74.97 C97 | 3 0.03 75.00 CCH | 2 0.02 75.02 CGS | 1 0.01 75.03 CHA | 12 0.12 75.15 CHK | 45 0.45 75.60 CNV | 2 0.02 75.62 COE | 13 0.13 75.75 COF | 396 3.96 79.71 COH | 3 0.03 79.74 COL | 5 0.05 79.79 COM | 6 0.06 79.85 CON | 240 2.40 82.25 CSR | 6 0.06 82.31 CTV | 21 0.21 82.52 CVS | 6 0.06 82.58 CWS | 12 0.12 82.70 D10 | 1 0.01 82.71 D15 | 7 0.07 82.78 D20 | 7 0.07 82.85 D21 | 11 0.11 82.96 D30 | 1 0.01 82.97 D51 | 1 0.01 82.98 D5I | 3 0.03 83.01 DAK | 53 0.53 83.54 DEN | 11 0.11 83.65 DIS | 14 0.14 83.79 DRW | 12 0.12 83.91 ECO | 17 0.17 84.08 ENV | 1 0.01 84.09 EXP | 2 0.02 84.11 FRT | 23 0.23 84.34 GCK | 85 0.85 85.19 GEO | 1 0.01 85.20 GM4 | 196 1.96 87.16 HOM | 2 0.02 87.18 HTP | 72 0.72 87.90 J/E | 2 0.02 87.92 JEE | 5 0.05 87.97 JMY | 9 0.09 88.06 K10 | 23 0.23 88.29 K15 | 19 0.19 88.48 K20 | 1 0.01 88.49 K25 | 1 0.01 88.50 KOD | 2 0.02 88.52 LIB | 4 0.04 88.56 LUV | 1 0.01 88.57 MAX | 4 0.04 88.61 MCV | 9 0.09 88.70 MHV | 9 0.09 88.79 MMX | 5 0.05 88.84 MRM | 8 0.08 88.92 MXV | 1 0.01 88.93 NPR | 2 0.02 88.95 P30 | 18 0.18 89.13 PAR | 1 0.01 89.14 PUP | 1 0.01 89.15 R/V | 10 0.10 89.25 R10 | 5 0.05 89.30 R15 | 2 0.02 89.32 R30 | 3 0.03 89.35 R50 | 2 0.02 89.37 RMV | 48 0.48 89.85 RMW | 1 0.01 89.86 RNG | 154 1.54 91.40 RPC | 123 1.23 92.63 S | 108 1.08 93.71 S/V | 18 0.18 93.89 S15 | 2 0.02 93.91 SAF | 22 0.22 94.13 SAV | 2 0.02 94.15 SCT | 2 0.02 94.17 SIE | 103 1.03 95.20 SIL | 118 1.18 96.38 SON | 26 0.26 96.64 SPK | 1 0.01 96.65 SRW | 27 0.27 96.92 SS | 7 0.07 96.99 STE | 6 0.06 97.05 STV | 1 0.01 97.06 T10 | 6 0.06 97.12 TAC | 45 0.45 97.57 THG | 4 0.04 97.61 TOP | 2 0.02 97.63 TRK | 34 0.34 97.97 TUN | 26 0.26 98.23 UHT | 4 0.04 98.27 V10 | 1 0.01 98.28 V15 | 4 0.04 98.32 V20 | 1 0.01 98.33 V30 | 1 0.01 98.34 VAN | 58 0.58 98.92 VVN | 9 0.09 99.01 VWG | 7 0.07 99.08 W/T | 7 0.07 99.15 W/Y | 14 0.14 99.29 W10 | 1 0.01 99.30 W15 | 1 0.01 99.31 W20 | 1 0.01 99.32 W51 | 2 0.02 99.34 WAG | 3 0.03 99.37 WCN | 4 0.04 99.41 WHC | 1 0.01 99.42 WIN | 1 0.01 99.43 WRA | 1 0.01 99.44 X44 | 7 0.07 99.51 XCB | 4 0.04 99.55 XPD | 2 0.02 99.57 Y/D | 1 0.01 99.58 YUK | 42 0.42 100.00 ------------+----------------------------------- Total | 10,000 100.00 by Jean Roth , jroth@nber.org , 18 Apr 2016