Frequencies for first 10,000 rows of state variable in accident dataset : state | Freq. Percent Cum. ------------+----------------------------------- 1 | 991 9.91 9.91 2 | 75 0.75 10.66 4 | 917 9.17 19.83 5 | 538 5.38 25.21 6 | 3,669 36.69 61.90 8 | 572 5.72 67.62 9 | 287 2.87 70.49 10 | 112 1.12 71.61 11 | 54 0.54 72.15 12 | 2,546 25.46 97.61 13 | 239 2.39 100.00 ------------+----------------------------------- Total | 10,000 100.00 by Jean Roth , jroth@nber.org , 18 Apr 2016