Frequencies for first 10,000 rows of vin_bt variable in vehicle dataset : VIN Body | Type | Freq. Percent Cum. ------------+----------------------------------- | 161 1.61 1.61 2D | 441 4.41 6.02 2F | 19 0.19 6.21 2H | 476 4.76 10.97 2L | 65 0.65 11.62 2P | 10 0.10 11.72 2T | 701 7.01 18.73 3D | 86 0.86 19.59 4D | 1,102 11.02 30.61 4H | 142 1.42 32.03 4L | 12 0.12 32.15 4P | 56 0.56 32.71 4T | 103 1.03 33.74 5D | 1 0.01 33.75 99 | 1,236 12.36 46.11 AT | 16 0.16 46.27 BU | 8 0.08 46.35 CB | 112 1.12 47.47 CC | 47 0.47 47.94 CP | 1,039 10.39 58.33 CV | 62 0.62 58.95 CY | 2 0.02 58.97 DP | 2 0.02 58.99 DS | 164 1.64 60.63 EN | 4 0.04 60.67 FB | 12 0.12 60.79 FC | 4 0.04 60.83 GG | 1 0.01 60.84 GL | 3 0.03 60.87 HB | 37 0.37 61.24 HT | 6 0.06 61.30 LB | 24 0.24 61.54 LL | 16 0.16 61.70 MH | 6 0.06 61.76 MK | 1 0.01 61.77 MM | 1 0.01 61.78 MR | 1 0.01 61.79 MS | 32 0.32 62.11 MX | 2 0.02 62.13 MY | 11 0.11 62.24 NB | 21 0.21 62.45 PK | 1,681 16.81 79.26 RD | 12 0.12 79.38 RS | 839 8.39 87.77 RT | 28 0.28 88.05 SD | 72 0.72 88.77 SN | 6 0.06 88.83 SV | 53 0.53 89.36 SW | 413 4.13 93.49 T | 4 0.04 93.53 TB | 49 0.49 94.02 TL | 93 0.93 94.95 TM | 67 0.67 95.62 UT | 227 2.27 97.89 VC | 1 0.01 97.90 VN | 208 2.08 99.98 YY | 2 0.02 100.00 ------------+----------------------------------- Total | 10,000 100.00 by Jean Roth , jroth@nber.org , 18 Apr 2016