Frequencies for first 10,000 rows of vin_bt variable in vehicle dataset : VIN Body | Type | Freq. Percent Cum. ------------+----------------------------------- | 247 2.47 2.47 2D | 462 4.62 7.09 2F | 46 0.46 7.55 2H | 363 3.63 11.18 2P | 7 0.07 11.25 2T | 1,121 11.21 22.46 3D | 110 1.10 23.56 4D | 815 8.15 31.71 4H | 76 0.76 32.47 4P | 63 0.63 33.10 4T | 191 1.91 35.01 99 | 1,899 18.99 54.00 AT | 4 0.04 54.04 BU | 4 0.04 54.08 CB | 115 1.15 55.23 CC | 25 0.25 55.48 CP | 889 8.89 64.37 CV | 66 0.66 65.03 CY | 3 0.03 65.06 DS | 40 0.40 65.46 EN | 1 0.01 65.47 FB | 14 0.14 65.61 FC | 4 0.04 65.65 HB | 44 0.44 66.09 HT | 4 0.04 66.13 LB | 61 0.61 66.74 LL | 12 0.12 66.86 MH | 2 0.02 66.88 MK | 4 0.04 66.92 MM | 1 0.01 66.93 MP | 1 0.01 66.94 MR | 1 0.01 66.95 MX | 2 0.02 66.97 MY | 4 0.04 67.01 NB | 21 0.21 67.22 PK | 1,311 13.11 80.33 PN | 1 0.01 80.34 RC | 1 0.01 80.35 RD | 9 0.09 80.44 RS | 707 7.07 87.51 RT | 49 0.49 88.00 SD | 117 1.17 89.17 SN | 7 0.07 89.24 SV | 42 0.42 89.66 SW | 468 4.68 94.34 TB | 42 0.42 94.76 TL | 66 0.66 95.42 TM | 53 0.53 95.95 UT | 184 1.84 97.79 VC | 1 0.01 97.80 VN | 214 2.14 99.94 XT | 6 0.06 100.00 ------------+----------------------------------- Total | 10,000 100.00 by Jean Roth , jroth@nber.org , 18 Apr 2016