Frequencies for first 10,000 rows of vin_bt variable in person dataset : VIN Body | Type | Freq. Percent Cum. ------------+----------------------------------- | 978 9.78 9.78 2D | 379 3.79 13.57 2F | 28 0.28 13.85 2H | 384 3.84 17.69 2L | 65 0.65 18.34 2P | 6 0.06 18.40 2T | 783 7.83 26.23 3D | 112 1.12 27.35 4D | 966 9.66 37.01 4H | 152 1.52 38.53 4L | 15 0.15 38.68 4P | 54 0.54 39.22 4T | 154 1.54 40.76 99 | 1,350 13.50 54.26 AT | 11 0.11 54.37 BU | 5 0.05 54.42 CB | 85 0.85 55.27 CC | 48 0.48 55.75 CP | 881 8.81 64.56 CV | 66 0.66 65.22 CY | 4 0.04 65.26 DP | 1 0.01 65.27 DS | 89 0.89 66.16 EN | 6 0.06 66.22 FB | 8 0.08 66.30 FC | 4 0.04 66.34 GL | 4 0.04 66.38 HB | 20 0.20 66.58 HT | 2 0.02 66.60 LB | 13 0.13 66.73 LL | 2 0.02 66.75 MH | 4 0.04 66.79 MS | 4 0.04 66.83 MX | 2 0.02 66.85 MY | 13 0.13 66.98 NB | 24 0.24 67.22 PK | 1,658 16.58 83.80 RD | 2 0.02 83.82 RS | 459 4.59 88.41 RT | 18 0.18 88.59 SD | 61 0.61 89.20 SN | 2 0.02 89.22 SV | 115 1.15 90.37 SW | 416 4.16 94.53 T | 2 0.02 94.55 TB | 25 0.25 94.80 TL | 85 0.85 95.65 TM | 39 0.39 96.04 UT | 250 2.50 98.54 VN | 144 1.44 99.98 XT | 2 0.02 100.00 ------------+----------------------------------- Total | 10,000 100.00 by Jean Roth , jroth@nber.org , 18 Apr 2016