Frequencies for first 10,000 rows of ser_tr variable in vehicle dataset : VIN | Series-Truc | k | Freq. Percent Cum. ------------+----------------------------------- | 343 3.43 3.43 *** | 5,881 58.81 62.24 150 | 6 0.06 62.30 44P | 8 0.08 62.38 620 | 55 0.55 62.93 720 | 12 0.12 63.05 999 | 1,830 18.30 81.35 A10 | 7 0.07 81.42 ART | 1 0.01 81.43 B18 | 2 0.02 81.45 B20 | 1 0.01 81.46 BRT | 5 0.05 81.51 C10 | 230 2.30 83.81 C15 | 46 0.46 84.27 C20 | 70 0.70 84.97 C25 | 20 0.20 85.17 C30 | 31 0.31 85.48 C35 | 9 0.09 85.57 C40 | 2 0.02 85.59 C50 | 10 0.10 85.69 C60 | 11 0.11 85.80 C65 | 7 0.07 85.87 C6M | 1 0.01 85.88 C6V | 3 0.03 85.91 CAB | 1 0.01 85.92 CGS | 9 0.09 86.01 CHA | 1 0.01 86.02 CHK | 3 0.03 86.05 CLS | 2 0.02 86.07 CLU | 14 0.14 86.21 COF | 413 4.13 90.34 COL | 8 0.08 90.42 CON | 14 0.14 90.56 COU | 66 0.66 91.22 CSC | 1 0.01 91.23 CTS | 47 0.47 91.70 CTV | 2 0.02 91.72 CVS | 2 0.02 91.74 CWS | 2 0.02 91.76 D10 | 27 0.27 92.03 D15 | 4 0.04 92.07 D20 | 15 0.15 92.22 D30 | 1 0.01 92.23 D40 | 2 0.02 92.25 D5I | 8 0.08 92.33 D60 | 1 0.01 92.34 D95 | 2 0.02 92.36 DC9 | 3 0.03 92.39 DH9 | 5 0.05 92.44 DK9 | 2 0.02 92.46 ELC | 15 0.15 92.61 F95 | 2 0.02 92.63 FC9 | 2 0.02 92.65 FCC | 1 0.01 92.66 FH9 | 1 0.01 92.67 FJ9 | 1 0.01 92.68 FLS | 8 0.08 92.76 HI9 | 2 0.02 92.78 HIC | 2 0.02 92.80 HLX | 10 0.10 92.90 HTC | 5 0.05 92.95 HTP | 62 0.62 93.57 HTW | 8 0.08 93.65 JC9 | 1 0.01 93.66 JEE | 53 0.53 94.19 JET | 1 0.01 94.20 JI9 | 1 0.01 94.21 JV7 | 1 0.01 94.22 JY7 | 1 0.01 94.23 K10 | 68 0.68 94.91 K15 | 17 0.17 95.08 K20 | 16 0.16 95.24 K25 | 8 0.08 95.32 K30 | 1 0.01 95.33 K35 | 2 0.02 95.35 KOM | 12 0.12 95.47 LDS | 8 0.08 95.55 LLN | 11 0.11 95.66 LTC | 12 0.12 95.78 LUV | 48 0.48 96.26 M60 | 1 0.01 96.27 M65 | 1 0.01 96.28 M6V | 1 0.01 96.29 MHV | 22 0.22 96.51 MIX | 1 0.01 96.52 MXV | 8 0.08 96.60 MXW | 3 0.03 96.63 P10 | 2 0.02 96.65 P15 | 1 0.01 96.66 P20 | 2 0.02 96.68 P30 | 5 0.05 96.73 PAR | 2 0.02 96.75 PL5 | 9 0.09 96.84 PL6 | 20 0.20 97.04 PYS | 1 0.01 97.05 RAB | 1 0.01 97.06 RAL | 4 0.04 97.10 RAM | 2 0.02 97.12 RAN | 8 0.08 97.20 RPU | 1 0.01 97.21 S50 | 2 0.02 97.23 SCO | 1 0.01 97.24 SCT | 8 0.08 97.32 SPO | 9 0.09 97.41 SPR | 1 0.01 97.42 SPT | 5 0.05 97.47 SS | 6 0.06 97.53 T60 | 1 0.01 97.54 T65 | 3 0.03 97.57 TAL | 2 0.02 97.59 TG7 | 1 0.01 97.60 TM7 | 1 0.01 97.61 TNS | 9 0.09 97.70 TRA | 15 0.15 97.85 VAN | 190 1.90 99.75 VL9 | 1 0.01 99.76 VVN | 1 0.01 99.77 W10 | 15 0.15 99.92 W20 | 4 0.04 99.96 W40 | 1 0.01 99.97 WAG | 3 0.03 100.00 ------------+----------------------------------- Total | 10,000 100.00 by Jean Roth , jroth@nber.org , 22 Apr 2016