Frequencies for first 10,000 rows of vin_bt variable in person dataset : VIN Body | Type | Freq. Percent Cum. ------------+----------------------------------- | 877 8.77 8.77 2D | 328 3.28 12.05 2F | 6 0.06 12.11 2H | 603 6.03 18.14 2L | 67 0.67 18.81 2P | 16 0.16 18.97 2T | 414 4.14 23.11 3D | 73 0.73 23.84 4D | 1,534 15.34 39.18 4H | 169 1.69 40.87 4L | 8 0.08 40.95 4P | 32 0.32 41.27 4T | 72 0.72 41.99 99 | 627 6.27 48.26 AT | 14 0.14 48.40 BU | 8 0.08 48.48 CB | 80 0.80 49.28 CC | 43 0.43 49.71 CP | 1,118 11.18 60.89 CV | 85 0.85 61.74 CY | 2 0.02 61.76 DP | 1 0.01 61.77 DS | 162 1.62 63.39 EN | 2 0.02 63.41 FB | 6 0.06 63.47 FC | 1 0.01 63.48 GL | 2 0.02 63.50 HB | 29 0.29 63.79 HT | 4 0.04 63.83 IC | 7 0.07 63.90 LB | 23 0.23 64.13 MH | 3 0.03 64.16 MS | 6 0.06 64.22 MX | 1 0.01 64.23 MY | 10 0.10 64.33 NB | 14 0.14 64.47 PK | 1,826 18.26 82.73 RD | 4 0.04 82.77 RS | 264 2.64 85.41 RT | 8 0.08 85.49 SD | 64 0.64 86.13 SN | 2 0.02 86.15 SV | 238 2.38 88.53 SW | 410 4.10 92.63 T | 3 0.03 92.66 TB | 24 0.24 92.90 TL | 61 0.61 93.51 TM | 46 0.46 93.97 UT | 321 3.21 97.18 VN | 273 2.73 99.91 YY | 9 0.09 100.00 ------------+----------------------------------- Total | 10,000 100.00 by Jean Roth , jroth@nber.org , 18 Apr 2016