Frequencies for first 10,000 rows of vin_bt variable in person dataset : VIN Body | Type | Freq. Percent Cum. ------------+----------------------------------- | 916 9.16 9.16 2D | 346 3.46 12.62 2F | 14 0.14 12.76 2H | 502 5.02 17.78 2L | 48 0.48 18.26 2P | 11 0.11 18.37 2T | 527 5.27 23.64 3D | 40 0.40 24.04 4D | 1,380 13.80 37.84 4H | 165 1.65 39.49 4L | 5 0.05 39.54 4P | 49 0.49 40.03 4T | 60 0.60 40.63 99 | 878 8.78 49.41 AT | 15 0.15 49.56 BU | 2 0.02 49.58 CB | 83 0.83 50.41 CC | 36 0.36 50.77 CP | 1,077 10.77 61.54 CV | 36 0.36 61.90 CY | 4 0.04 61.94 DP | 1 0.01 61.95 DS | 150 1.50 63.45 EN | 1 0.01 63.46 FB | 6 0.06 63.52 FC | 1 0.01 63.53 GG | 2 0.02 63.55 GL | 2 0.02 63.57 HB | 28 0.28 63.85 HT | 1 0.01 63.86 IC | 1 0.01 63.87 LB | 11 0.11 63.98 LL | 26 0.26 64.24 LM | 2 0.02 64.26 MK | 1 0.01 64.27 MS | 14 0.14 64.41 MX | 2 0.02 64.43 MY | 10 0.10 64.53 NB | 15 0.15 64.68 PK | 1,830 18.30 82.98 PN | 2 0.02 83.00 RD | 4 0.04 83.04 RS | 365 3.65 86.69 RT | 11 0.11 86.80 SD | 36 0.36 87.16 SN | 5 0.05 87.21 SV | 153 1.53 88.74 SW | 411 4.11 92.85 TB | 20 0.20 93.05 TL | 63 0.63 93.68 TM | 61 0.61 94.29 UT | 324 3.24 97.53 VN | 246 2.46 99.99 XT | 1 0.01 100.00 ------------+----------------------------------- Total | 10,000 100.00 by Jean Roth , jroth@nber.org , 18 Apr 2016