Frequencies for first 10,000 rows of vin_bt variable in person dataset : VIN Body | Type | Freq. Percent Cum. ------------+----------------------------------- | 1,054 10.54 10.54 2D | 475 4.75 15.29 2F | 32 0.32 15.61 2H | 377 3.77 19.38 2P | 7 0.07 19.45 2T | 1,003 10.03 29.48 3D | 110 1.10 30.58 4D | 816 8.16 38.74 4H | 116 1.16 39.90 4P | 72 0.72 40.62 4T | 182 1.82 42.44 99 | 1,409 14.09 56.53 AM | 1 0.01 56.54 AT | 7 0.07 56.61 BU | 53 0.53 57.14 CB | 93 0.93 58.07 CC | 30 0.30 58.37 CP | 827 8.27 66.64 CV | 43 0.43 67.07 CY | 8 0.08 67.15 DS | 39 0.39 67.54 FB | 8 0.08 67.62 FC | 4 0.04 67.66 GG | 1 0.01 67.67 GL | 6 0.06 67.73 HB | 44 0.44 68.17 HT | 5 0.05 68.22 LB | 48 0.48 68.70 LL | 21 0.21 68.91 MH | 2 0.02 68.93 MM | 2 0.02 68.95 MR | 1 0.01 68.96 MS | 1 0.01 68.97 MX | 1 0.01 68.98 MY | 19 0.19 69.17 NB | 22 0.22 69.39 PK | 1,403 14.03 83.42 RD | 7 0.07 83.49 RS | 386 3.86 87.35 RT | 34 0.34 87.69 SD | 85 0.85 88.54 SN | 4 0.04 88.58 SV | 66 0.66 89.24 SW | 478 4.78 94.02 T | 1 0.01 94.03 TB | 20 0.20 94.23 TL | 65 0.65 94.88 TM | 25 0.25 95.13 UT | 233 2.33 97.46 VN | 251 2.51 99.97 XT | 3 0.03 100.00 ------------+----------------------------------- Total | 10,000 100.00 by Jean Roth , jroth@nber.org , 18 Apr 2016