Frequencies for first 10,000 rows of ser_tr variable in person dataset : VIN SERIES | TRUCK | Freq. Percent Cum. ------------+----------------------------------- | 648 6.48 6.48 *** | 5,944 59.44 65.92 10S | 1 0.01 65.93 3/4 | 1 0.01 65.94 30S | 43 0.43 66.37 350 | 1 0.01 66.38 40S | 17 0.17 66.55 44P | 12 0.12 66.67 500 | 1 0.01 66.68 550 | 1 0.01 66.69 600 | 33 0.33 67.02 620 | 3 0.03 67.05 700 | 1 0.01 67.06 720 | 8 0.08 67.14 80S | 3 0.03 67.17 90S | 14 0.14 67.31 910 | 3 0.03 67.34 920 | 20 0.20 67.54 940 | 6 0.06 67.60 990 | 2 0.02 67.62 999 | 445 4.45 72.07 ARO | 11 0.11 72.18 AST | 3 0.03 72.21 AVL | 13 0.13 72.34 B20 | 4 0.04 72.38 B22 | 3 0.03 72.41 B23 | 2 0.02 72.43 B25 | 2 0.02 72.45 B26 | 1 0.01 72.46 B30 | 3 0.03 72.49 B7T | 1 0.01 72.50 BRO | 1 0.01 72.51 BVN | 2 0.02 72.53 C/C | 3 0.03 72.56 C10 | 23 0.23 72.79 C15 | 17 0.17 72.96 C20 | 15 0.15 73.11 C25 | 14 0.14 73.25 C30 | 2 0.02 73.27 C6M | 2 0.02 73.29 C6V | 6 0.06 73.35 C96 | 1 0.01 73.36 CAR | 1 0.01 73.37 CHA | 4 0.04 73.41 CHK | 62 0.62 74.03 CLT | 1 0.01 74.04 CNV | 8 0.08 74.12 COE | 11 0.11 74.23 COF | 348 3.48 77.71 COH | 1 0.01 77.72 COL | 8 0.08 77.80 COM | 1 0.01 77.81 CON | 253 2.53 80.34 COU | 1 0.01 80.35 CSR | 8 0.08 80.43 CTS | 1 0.01 80.44 CTV | 46 0.46 80.90 CVS | 2 0.02 80.92 CWS | 45 0.45 81.37 D10 | 4 0.04 81.41 D15 | 4 0.04 81.45 D20 | 5 0.05 81.50 D21 | 14 0.14 81.64 D30 | 7 0.07 81.71 D51 | 5 0.05 81.76 D5I | 3 0.03 81.79 DAK | 65 0.65 82.44 DEN | 5 0.05 82.49 DIS | 6 0.06 82.55 DRW | 13 0.13 82.68 ECO | 27 0.27 82.95 ENV | 3 0.03 82.98 ESC | 3 0.03 83.01 ETV | 1 0.01 83.02 EXP | 2 0.02 83.04 FH2 | 1 0.01 83.05 FRT | 26 0.26 83.31 GCK | 59 0.59 83.90 GM4 | 233 2.33 86.23 HFE | 1 0.01 86.24 HTL | 2 0.02 86.26 HTP | 59 0.59 86.85 J/E | 5 0.05 86.90 JEE | 6 0.06 86.96 JMY | 10 0.10 87.06 K10 | 16 0.16 87.22 K15 | 10 0.10 87.32 K20 | 4 0.04 87.36 KOD | 4 0.04 87.40 KOM | 1 0.01 87.41 LB1 | 2 0.02 87.43 LIB | 18 0.18 87.61 MCV | 12 0.12 87.73 MHV | 10 0.10 87.83 MMX | 2 0.02 87.85 MRM | 3 0.03 87.88 NPR | 11 0.11 87.99 P30 | 4 0.04 88.03 P42 | 2 0.02 88.05 PCC | 1 0.01 88.06 PUP | 1 0.01 88.07 PYS | 1 0.01 88.08 R/V | 11 0.11 88.19 R10 | 3 0.03 88.22 R15 | 1 0.01 88.23 RAN | 3 0.03 88.26 RIV | 1 0.01 88.27 RMV | 13 0.13 88.40 RNG | 167 1.67 90.07 RPC | 129 1.29 91.36 RRV | 1 0.01 91.37 S | 112 1.12 92.49 S/V | 37 0.37 92.86 S15 | 4 0.04 92.90 SAF | 9 0.09 92.99 SIE | 132 1.32 94.31 SIL | 176 1.76 96.07 SON | 20 0.20 96.27 SRW | 57 0.57 96.84 SS | 2 0.02 96.86 SSE | 1 0.01 96.87 STE | 4 0.04 96.91 T10 | 7 0.07 96.98 TAC | 55 0.55 97.53 TNS | 1 0.01 97.54 TOP | 2 0.02 97.56 TRK | 37 0.37 97.93 TUN | 17 0.17 98.10 UDS | 2 0.02 98.12 UHT | 1 0.01 98.13 V10 | 1 0.01 98.14 V25 | 1 0.01 98.15 VAN | 87 0.87 99.02 VFE | 1 0.01 99.03 VVN | 23 0.23 99.26 VWG | 1 0.01 99.27 W/T | 10 0.10 99.37 W/Y | 13 0.13 99.50 W10 | 2 0.02 99.52 W15 | 2 0.02 99.54 W20 | 4 0.04 99.58 W30 | 2 0.02 99.60 WCN | 9 0.09 99.69 WRA | 4 0.04 99.73 WT5 | 1 0.01 99.74 XCB | 4 0.04 99.78 XPD | 3 0.03 99.81 YUK | 19 0.19 100.00 ------------+----------------------------------- Total | 10,000 100.00 by Jean Roth , jroth@nber.org , 18 Apr 2016