Frequencies for first 10,000 rows of vin_bt variable in vehicle dataset : VIN Body | Type | Freq. Percent Cum. ------------+----------------------------------- | 132 1.32 1.32 2D | 378 3.78 5.10 2F | 8 0.08 5.18 2H | 635 6.35 11.53 2L | 78 0.78 12.31 2P | 7 0.07 12.38 2T | 371 3.71 16.09 3D | 47 0.47 16.56 4D | 1,593 15.93 32.49 4H | 176 1.76 34.25 4L | 11 0.11 34.36 4P | 31 0.31 34.67 4T | 43 0.43 35.10 5D | 1 0.01 35.11 99 | 880 8.80 43.91 AT | 11 0.11 44.02 BU | 5 0.05 44.07 CB | 94 0.94 45.01 CC | 65 0.65 45.66 CP | 1,133 11.33 56.99 CV | 76 0.76 57.75 CY | 9 0.09 57.84 DP | 1 0.01 57.85 DS | 233 2.33 60.18 EN | 5 0.05 60.23 FB | 9 0.09 60.32 FC | 4 0.04 60.36 GL | 8 0.08 60.44 HB | 21 0.21 60.65 HT | 9 0.09 60.74 IC | 2 0.02 60.76 LB | 28 0.28 61.04 LL | 10 0.10 61.14 MH | 9 0.09 61.23 MK | 1 0.01 61.24 MM | 1 0.01 61.25 MS | 19 0.19 61.44 MX | 8 0.08 61.52 MY | 10 0.10 61.62 NB | 14 0.14 61.76 PK | 1,829 18.29 80.05 PN | 1 0.01 80.06 RD | 4 0.04 80.10 RS | 618 6.18 86.28 RT | 15 0.15 86.43 SD | 55 0.55 86.98 SN | 8 0.08 87.06 ST | 1 0.01 87.07 SV | 169 1.69 88.76 SW | 396 3.96 92.72 T | 2 0.02 92.74 TB | 53 0.53 93.27 TL | 59 0.59 93.86 TM | 75 0.75 94.61 UT | 338 3.38 97.99 VN | 200 2.00 99.99 YY | 1 0.01 100.00 ------------+----------------------------------- Total | 10,000 100.00 by Jean Roth , jroth@nber.org , 18 Apr 2016