Frequencies for first 10,000 rows of ser_tr variable in vehicle dataset : VIN | Series-Truc | k | Freq. Percent Cum. ------------+----------------------------------- | 34 0.34 0.34 *** | 4,976 49.76 50.10 150 | 7 0.07 50.17 620 | 33 0.33 50.50 999 | 3,223 32.23 82.73 A10 | 5 0.05 82.78 BRO | 11 0.11 82.89 BRT | 1 0.01 82.90 BUS | 1 0.01 82.91 C10 | 239 2.39 85.30 C15 | 42 0.42 85.72 C20 | 69 0.69 86.41 C25 | 16 0.16 86.57 C30 | 24 0.24 86.81 C35 | 4 0.04 86.85 C40 | 1 0.01 86.86 C50 | 9 0.09 86.95 C60 | 11 0.11 87.06 C65 | 4 0.04 87.10 CGS | 7 0.07 87.17 CHK | 3 0.03 87.20 CLU | 10 0.10 87.30 COF | 425 4.25 91.55 COL | 8 0.08 91.63 CON | 18 0.18 91.81 COU | 38 0.38 92.19 CPU | 2 0.02 92.21 CTS | 45 0.45 92.66 CTV | 2 0.02 92.68 CVS | 1 0.01 92.69 D10 | 28 0.28 92.97 D15 | 1 0.01 92.98 D20 | 16 0.16 93.14 D30 | 1 0.01 93.15 D40 | 4 0.04 93.19 D50 | 2 0.02 93.21 D60 | 3 0.03 93.24 D70 | 1 0.01 93.25 DC9 | 2 0.02 93.27 DH9 | 5 0.05 93.32 DK9 | 1 0.01 93.33 ELC | 17 0.17 93.50 FC9 | 3 0.03 93.53 FCC | 1 0.01 93.54 FH9 | 3 0.03 93.57 FLS | 3 0.03 93.60 G15 | 1 0.01 93.61 HG7 | 1 0.01 93.62 HI9 | 1 0.01 93.63 HLX | 11 0.11 93.74 HTC | 5 0.05 93.79 HTP | 26 0.26 94.05 HTW | 11 0.11 94.16 JC9 | 1 0.01 94.17 JEE | 33 0.33 94.50 JH9 | 1 0.01 94.51 JI9 | 1 0.01 94.52 K10 | 75 0.75 95.27 K15 | 17 0.17 95.44 K20 | 13 0.13 95.57 K25 | 11 0.11 95.68 KOM | 9 0.09 95.77 KRV | 3 0.03 95.80 LCH | 10 0.10 95.90 LDS | 14 0.14 96.04 LLN | 11 0.11 96.15 LTC | 8 0.08 96.23 LUV | 27 0.27 96.50 M60 | 1 0.01 96.51 M65 | 1 0.01 96.52 MC2 | 1 0.01 96.53 MH9 | 1 0.01 96.54 MHC | 3 0.03 96.57 MHV | 21 0.21 96.78 MIX | 1 0.01 96.79 MXV | 6 0.06 96.85 MXW | 3 0.03 96.88 P20 | 3 0.03 96.91 P30 | 7 0.07 96.98 P52 | 12 0.12 97.10 P62 | 29 0.29 97.39 PAR | 1 0.01 97.40 PL5 | 7 0.07 97.47 R80 | 1 0.01 97.48 RAL | 2 0.02 97.50 RAM | 1 0.01 97.51 RAN | 6 0.06 97.57 RPU | 1 0.01 97.58 SCO | 1 0.01 97.59 SCT | 5 0.05 97.64 SPO | 7 0.07 97.71 SPR | 1 0.01 97.72 SPT | 6 0.06 97.78 SS | 2 0.02 97.80 T60 | 1 0.01 97.81 T65 | 2 0.02 97.83 TAL | 1 0.01 97.84 TE9 | 1 0.01 97.85 TNS | 9 0.09 97.94 TRA | 15 0.15 98.09 VAN | 170 1.70 99.79 VOY | 1 0.01 99.80 VVN | 1 0.01 99.81 W10 | 12 0.12 99.93 W15 | 2 0.02 99.95 W20 | 1 0.01 99.96 WAG | 3 0.03 99.99 WV7 | 1 0.01 100.00 ------------+----------------------------------- Total | 10,000 100.00 by Jean Roth , jroth@nber.org , 22 Apr 2016