Frequencies for ser_tr variable in vehnit dataset : VIN SERIES | TRUCK | Freq. Percent Cum. ------------+----------------------------------- | 1 0.08 0.08 *** | 677 53.22 53.30 300 | 1 0.08 53.38 30S | 2 0.16 53.54 400 | 2 0.16 53.69 40S | 19 1.49 55.19 600 | 6 0.47 55.66 700 | 2 0.16 55.82 70S | 2 0.16 55.97 720 | 1 0.08 56.05 80S | 1 0.08 56.13 920 | 3 0.24 56.37 940 | 1 0.08 56.45 990 | 1 0.08 56.53 999 | 79 6.21 62.74 ARO | 2 0.16 62.89 AST | 6 0.47 63.36 AVL | 1 0.08 63.44 C15 | 3 0.24 63.68 C20 | 1 0.08 63.76 C25 | 1 0.08 63.84 C40 | 1 0.08 63.92 C45 | 3 0.24 64.15 C50 | 1 0.08 64.23 C55 | 3 0.24 64.47 C65 | 2 0.16 64.62 C85 | 1 0.08 64.70 CAL | 1 0.08 64.78 CAR | 1 0.08 64.86 CHA | 1 0.08 64.94 CHK | 4 0.31 65.25 CLT | 1 0.08 65.33 CMP | 1 0.08 65.41 COF | 62 4.87 70.28 COH | 2 0.16 70.44 COL | 2 0.16 70.60 CON | 64 5.03 75.63 CSC | 1 0.08 75.71 CSR | 6 0.47 76.18 CTV | 3 0.24 76.42 CVS | 1 0.08 76.49 D15 | 1 0.08 76.57 D20 | 1 0.08 76.65 D21 | 1 0.08 76.73 DAK | 7 0.55 77.28 DIS | 1 0.08 77.36 DRW | 12 0.94 78.30 ECO | 1 0.08 78.38 ENV | 2 0.16 78.54 ETV | 2 0.16 78.69 EXP | 2 0.16 78.85 FE6 | 1 0.08 78.93 FE8 | 1 0.08 79.01 FM2 | 2 0.16 79.17 GCK | 8 0.63 79.80 GM4 | 17 1.34 81.13 HTP | 2 0.16 81.29 HUM | 1 0.08 81.37 I29 | 1 0.08 81.45 J/E | 1 0.08 81.53 K10 | 1 0.08 81.60 K15 | 2 0.16 81.76 K20 | 1 0.08 81.84 KOD | 1 0.08 81.92 LIB | 4 0.31 82.23 MCV | 4 0.31 82.55 MHV | 3 0.24 82.78 MON | 2 0.16 82.94 NPR | 2 0.16 83.10 PYS | 1 0.08 83.18 R/V | 1 0.08 83.25 R30 | 1 0.08 83.33 R35 | 1 0.08 83.41 RID | 1 0.08 83.49 RMV | 5 0.39 83.88 RMW | 1 0.08 83.96 RNG | 12 0.94 84.91 RPC | 29 2.28 87.19 RRV | 1 0.08 87.26 S | 7 0.55 87.81 S10 | 1 0.08 87.89 S15 | 3 0.24 88.13 SAF | 5 0.39 88.52 SAV | 2 0.16 88.68 SIE | 15 1.18 89.86 SIL | 40 3.14 93.00 SON | 1 0.08 93.08 SRW | 13 1.02 94.10 SS | 1 0.08 94.18 STE | 5 0.39 94.58 STV | 4 0.31 94.89 TAC | 3 0.24 95.13 TOP | 2 0.16 95.28 TRK | 1 0.08 95.36 TTN | 3 0.24 95.60 TUN | 3 0.24 95.83 UPL | 1 0.08 95.91 V10 | 1 0.08 95.99 V15 | 1 0.08 96.07 VAN | 13 1.02 97.09 VOF | 1 0.08 97.17 VTR | 2 0.16 97.33 VVN | 14 1.10 98.43 W/T | 2 0.16 98.58 W/Y | 3 0.24 98.82 W20 | 2 0.16 98.98 WIN | 5 0.39 99.37 WUL | 1 0.08 99.45 XCB | 1 0.08 99.53 YUK | 6 0.47 100.00 ------------+----------------------------------- Total | 1,272 100.00 by Jean Roth , jroth@nber.org , 18 Apr 2016