Frequencies for first 10,000 rows of vin_bt variable in person dataset : VIN Body | Type | Freq. Percent Cum. ------------+----------------------------------- | 979 9.79 9.79 2D | 404 4.04 13.83 2F | 21 0.21 14.04 2H | 369 3.69 17.73 2L | 55 0.55 18.28 2P | 16 0.16 18.44 2T | 924 9.24 27.68 3D | 95 0.95 28.63 4D | 968 9.68 38.31 4H | 127 1.27 39.58 4L | 7 0.07 39.65 4P | 47 0.47 40.12 4T | 166 1.66 41.78 99 | 1,491 14.91 56.69 AT | 10 0.10 56.79 CB | 90 0.90 57.69 CC | 34 0.34 58.03 CP | 893 8.93 66.96 CV | 67 0.67 67.63 CY | 1 0.01 67.64 DS | 77 0.77 68.41 EN | 1 0.01 68.42 FC | 2 0.02 68.44 GL | 4 0.04 68.48 HB | 27 0.27 68.75 HT | 4 0.04 68.79 LB | 25 0.25 69.04 LL | 15 0.15 69.19 MK | 2 0.02 69.21 MM | 3 0.03 69.24 MS | 2 0.02 69.26 MX | 1 0.01 69.27 MY | 10 0.10 69.37 NB | 18 0.18 69.55 PK | 1,462 14.62 84.17 RD | 8 0.08 84.25 RS | 441 4.41 88.66 RT | 23 0.23 88.89 SD | 116 1.16 90.05 SN | 5 0.05 90.10 SV | 82 0.82 90.92 SW | 429 4.29 95.21 T | 3 0.03 95.24 TB | 16 0.16 95.40 TL | 65 0.65 96.05 TM | 38 0.38 96.43 UT | 169 1.69 98.12 VN | 182 1.82 99.94 XT | 6 0.06 100.00 ------------+----------------------------------- Total | 10,000 100.00 by Jean Roth , jroth@nber.org , 18 Apr 2016