Frequencies for first 10,000 rows of ser_tr variable in vehicle dataset : VIN | Series-Truc | k | Freq. Percent Cum. ------------+----------------------------------- | 372 3.72 3.72 *** | 5,515 55.15 58.87 150 | 3 0.03 58.90 44P | 3 0.03 58.93 620 | 54 0.54 59.47 999 | 2,319 23.19 82.66 A10 | 3 0.03 82.69 ART | 2 0.02 82.71 B18 | 1 0.01 82.72 BRO | 5 0.05 82.77 BRT | 3 0.03 82.80 BUS | 2 0.02 82.82 C10 | 229 2.29 85.11 C15 | 47 0.47 85.58 C20 | 85 0.85 86.43 C25 | 16 0.16 86.59 C30 | 28 0.28 86.87 C35 | 9 0.09 86.96 C50 | 9 0.09 87.05 C55 | 1 0.01 87.06 C60 | 10 0.10 87.16 C65 | 7 0.07 87.23 C6V | 1 0.01 87.24 CGS | 8 0.08 87.32 CH9 | 1 0.01 87.33 CHK | 1 0.01 87.34 CLS | 1 0.01 87.35 CLU | 8 0.08 87.43 COF | 368 3.68 91.11 COL | 9 0.09 91.20 CON | 21 0.21 91.41 COU | 35 0.35 91.76 CPU | 2 0.02 91.78 CTS | 58 0.58 92.36 CTV | 2 0.02 92.38 D10 | 22 0.22 92.60 D20 | 13 0.13 92.73 D30 | 2 0.02 92.75 D40 | 2 0.02 92.77 D50 | 2 0.02 92.79 D5I | 3 0.03 92.82 D60 | 1 0.01 92.83 DC9 | 12 0.12 92.95 DH9 | 7 0.07 93.02 DJ9 | 1 0.01 93.03 DK9 | 1 0.01 93.04 ELC | 17 0.17 93.21 EPU | 1 0.01 93.22 FH9 | 4 0.04 93.26 FLS | 7 0.07 93.33 G15 | 1 0.01 93.34 G25 | 1 0.01 93.35 HI9 | 3 0.03 93.38 HIC | 1 0.01 93.39 HLX | 14 0.14 93.53 HTC | 5 0.05 93.58 HTP | 38 0.38 93.96 HTW | 16 0.16 94.12 J95 | 1 0.01 94.13 JEE | 34 0.34 94.47 JET | 6 0.06 94.53 JI9 | 2 0.02 94.55 JM7 | 1 0.01 94.56 JN9 | 1 0.01 94.57 K10 | 67 0.67 95.24 K15 | 22 0.22 95.46 K20 | 19 0.19 95.65 K25 | 8 0.08 95.73 K30 | 1 0.01 95.74 K35 | 1 0.01 95.75 KOM | 4 0.04 95.79 L90 | 1 0.01 95.80 LDS | 13 0.13 95.93 LLN | 3 0.03 95.96 LN1 | 1 0.01 95.97 LTC | 9 0.09 96.06 LUV | 37 0.37 96.43 M95 | 1 0.01 96.44 MC2 | 1 0.01 96.45 MHC | 1 0.01 96.46 MHV | 25 0.25 96.71 MXV | 9 0.09 96.80 MXW | 7 0.07 96.87 N95 | 1 0.01 96.88 P30 | 4 0.04 96.92 PAR | 2 0.02 96.94 PL5 | 9 0.09 97.03 PL6 | 27 0.27 97.30 POU | 1 0.01 97.31 PYS | 1 0.01 97.32 RAL | 2 0.02 97.34 RAN | 6 0.06 97.40 RPU | 2 0.02 97.42 S55 | 1 0.01 97.43 SCO | 2 0.02 97.45 SCT | 7 0.07 97.52 SPO | 10 0.10 97.62 SPR | 3 0.03 97.65 SPT | 6 0.06 97.71 SS | 3 0.03 97.74 T60 | 1 0.01 97.75 T65 | 1 0.01 97.76 T6M | 1 0.01 97.77 TNS | 7 0.07 97.84 TRA | 13 0.13 97.97 VAN | 181 1.81 99.78 W10 | 14 0.14 99.92 W20 | 3 0.03 99.95 WAG | 5 0.05 100.00 ------------+----------------------------------- Total | 10,000 100.00 by Jean Roth , jroth@nber.org , 22 Apr 2016