Frequencies for first 10,000 rows of vin_10 variable in vehicle dataset : vin_10 | Freq. Percent Cum. ------------+----------------------------------- | 38 0.38 0.38 0 | 50 0.50 0.88 1 | 698 6.98 7.86 2 | 655 6.55 14.41 3 | 765 7.65 22.06 4 | 620 6.20 28.26 5 | 80 0.80 29.06 6 | 18 0.18 29.24 7 | 27 0.27 29.51 8 | 22 0.22 29.73 9 | 430 4.30 34.03 B | 35 0.35 34.38 C | 51 0.51 34.89 D | 43 0.43 35.32 E | 83 0.83 36.15 F | 110 1.10 37.25 G | 140 1.40 38.65 H | 193 1.93 40.58 J | 222 2.22 42.80 K | 307 3.07 45.87 L | 303 3.03 48.90 M | 359 3.59 52.49 N | 341 3.41 55.90 P | 415 4.15 60.05 R | 478 4.78 64.83 S | 539 5.39 70.22 T | 471 4.71 74.93 U | 1 0.01 74.94 V | 572 5.72 80.66 W | 552 5.52 86.18 X | 651 6.51 92.69 Y | 730 7.30 99.99 Z | 1 0.01 100.00 ------------+----------------------------------- Total | 10,000 100.00 by Jean Roth , jroth@nber.org , 18 Apr 2016