Frequencies for first 10,000 rows of ser_tr variable in vehicle dataset : VIN | Series-Truc | k | Freq. Percent Cum. ------------+----------------------------------- | 1 0.01 0.01 *** | 6,288 62.88 62.89 116 | 1 0.01 62.90 200 | 3 0.03 62.93 250 | 2 0.02 62.95 3/4 | 1 0.01 62.96 40S | 1 0.01 62.97 44P | 68 0.68 63.65 500 | 1 0.01 63.66 600 | 23 0.23 63.89 620 | 11 0.11 64.00 700 | 3 0.03 64.03 720 | 77 0.77 64.80 80S | 1 0.01 64.81 830 | 1 0.01 64.82 90S | 12 0.12 64.94 930 | 7 0.07 65.01 937 | 9 0.09 65.10 999 | 880 8.80 73.90 A10 | 1 0.01 73.91 AMI | 3 0.03 73.94 ARO | 8 0.08 74.02 AST | 8 0.08 74.10 B20 | 33 0.33 74.43 B22 | 16 0.16 74.59 B26 | 1 0.01 74.60 BRO | 7 0.07 74.67 BUS | 3 0.03 74.70 C/C | 2 0.02 74.72 C10 | 177 1.77 76.49 C15 | 46 0.46 76.95 C20 | 54 0.54 77.49 C25 | 17 0.17 77.66 C30 | 23 0.23 77.89 C35 | 6 0.06 77.95 C40 | 1 0.01 77.96 C50 | 1 0.01 77.97 C60 | 7 0.07 78.04 C65 | 3 0.03 78.07 C6M | 2 0.02 78.09 C6V | 14 0.14 78.23 C96 | 24 0.24 78.47 C97 | 3 0.03 78.50 CAB | 1 0.01 78.51 CCH | 5 0.05 78.56 CCV | 1 0.01 78.57 CGS | 7 0.07 78.64 CHK | 34 0.34 78.98 CLT | 2 0.02 79.00 CMA | 2 0.02 79.02 CN1 | 1 0.01 79.03 CNV | 3 0.03 79.06 COE | 64 0.64 79.70 COF | 380 3.80 83.50 COL | 12 0.12 83.62 COM | 4 0.04 83.66 CON | 151 1.51 85.17 CTS | 22 0.22 85.39 CTV | 16 0.16 85.55 CVS | 4 0.04 85.59 D10 | 15 0.15 85.74 D15 | 18 0.18 85.92 D20 | 10 0.10 86.02 D21 | 69 0.69 86.71 D30 | 5 0.05 86.76 D40 | 1 0.01 86.77 D50 | 2 0.02 86.79 D5I | 14 0.14 86.93 D95 | 2 0.02 86.95 DAK | 14 0.14 87.09 DH9 | 1 0.01 87.10 DK9 | 1 0.01 87.11 ELC | 8 0.08 87.19 EPU | 1 0.01 87.20 F70 | 1 0.01 87.21 F95 | 1 0.01 87.22 FCC | 1 0.01 87.23 FH9 | 2 0.02 87.25 FLS | 1 0.01 87.26 FTR | 3 0.03 87.29 GEO | 1 0.01 87.30 GM4 | 81 0.81 88.11 H95 | 3 0.03 88.14 HFF | 1 0.01 88.15 HIC | 3 0.03 88.18 HLX | 9 0.09 88.27 HSG | 2 0.02 88.29 HTC | 6 0.06 88.35 HTP | 167 1.67 90.02 HTW | 4 0.04 90.06 INT | 3 0.03 90.09 J95 | 2 0.02 90.11 JEE | 32 0.32 90.43 JET | 2 0.02 90.45 JH9 | 1 0.01 90.46 K10 | 41 0.41 90.87 K15 | 16 0.16 91.03 K20 | 8 0.08 91.11 K25 | 2 0.02 91.13 K30 | 3 0.03 91.16 LB1 | 2 0.02 91.18 LDS | 4 0.04 91.22 LLN | 6 0.06 91.28 LP9 | 1 0.01 91.29 LTC | 7 0.07 91.36 M65 | 1 0.01 91.37 M95 | 1 0.01 91.38 MCV | 3 0.03 91.41 MET | 1 0.01 91.42 MHC | 1 0.01 91.43 MHV | 23 0.23 91.66 MMX | 11 0.11 91.77 MON | 1 0.01 91.78 MRM | 1 0.01 91.79 MVN | 2 0.02 91.81 MXV | 4 0.04 91.85 N90 | 1 0.01 91.86 N95 | 1 0.01 91.87 NC9 | 1 0.01 91.88 NPR | 3 0.03 91.91 P10 | 1 0.01 91.92 P30 | 14 0.14 92.06 P52 | 1 0.01 92.07 P62 | 8 0.08 92.15 P65 | 1 0.01 92.16 PCC | 6 0.06 92.22 PFI | 11 0.11 92.33 PUP | 10 0.10 92.43 PYS | 2 0.02 92.45 R/V | 2 0.02 92.47 R10 | 7 0.07 92.54 R15 | 3 0.03 92.57 R20 | 1 0.01 92.58 R25 | 1 0.01 92.59 R30 | 3 0.03 92.62 R35 | 7 0.07 92.69 R50 | 21 0.21 92.90 RAI | 2 0.02 92.92 RAL | 1 0.01 92.93 RAN | 1 0.01 92.94 RBT | 4 0.04 92.98 RC | 1 0.01 92.99 RMV | 17 0.17 93.16 RMW | 1 0.01 93.17 RNG | 147 1.47 94.64 RUN | 28 0.28 94.92 RX | 1 0.01 94.93 S | 105 1.05 95.98 S/V | 10 0.10 96.08 S10 | 2 0.02 96.10 S15 | 13 0.13 96.23 SAF | 6 0.06 96.29 SBS | 2 0.02 96.31 SCO | 1 0.01 96.32 SCR | 1 0.01 96.33 SCT | 10 0.10 96.43 SIE | 15 0.15 96.58 SMR | 15 0.15 96.73 SPK | 1 0.01 96.74 SPR | 1 0.01 96.75 SPX | 2 0.02 96.77 SS | 25 0.25 97.02 SXD | 1 0.01 97.03 SXS | 1 0.01 97.04 T65 | 1 0.01 97.05 TNS | 7 0.07 97.12 TRO | 7 0.07 97.19 TRS | 1 0.01 97.20 UDS | 1 0.01 97.21 UNI | 1 0.01 97.22 V15 | 5 0.05 97.27 V25 | 1 0.01 97.28 VAN | 157 1.57 98.85 VVN | 1 0.01 98.86 VWG | 8 0.08 98.94 W/Y | 7 0.07 99.01 W10 | 7 0.07 99.08 W15 | 8 0.08 99.16 W20 | 2 0.02 99.18 W30 | 5 0.05 99.23 WAG | 13 0.13 99.36 WCN | 9 0.09 99.45 WHC | 3 0.03 99.48 WLC | 1 0.01 99.49 WRA | 8 0.08 99.57 X44 | 17 0.17 99.74 XCB | 18 0.18 99.92 XCN | 2 0.02 99.94 XCO | 3 0.03 99.97 XPD | 3 0.03 100.00 ------------+----------------------------------- Total | 10,000 100.00 by Jean Roth , jroth@nber.org , 18 Apr 2016