Frequencies for first 10,000 rows of prov0060 variable in pos1991 dataset : alcohol/dru | g unit | termination | date | Freq. Percent Cum. ------------+----------------------------------- | 9,902 99.02 99.02 840701 | 1 0.01 99.03 840802 | 1 0.01 99.04 840809 | 1 0.01 99.05 840820 | 1 0.01 99.06 850101 | 1 0.01 99.07 850124 | 1 0.01 99.08 850208 | 1 0.01 99.09 850301 | 1 0.01 99.10 850630 | 1 0.01 99.11 850701 | 1 0.01 99.12 850901 | 1 0.01 99.13 851231 | 1 0.01 99.14 860416 | 1 0.01 99.15 860701 | 1 0.01 99.16 861001 | 1 0.01 99.17 870101 | 1 0.01 99.18 870630 | 1 0.01 99.19 870701 | 2 0.02 99.21 870801 | 1 0.01 99.22 870930 | 4 0.04 99.26 871001 | 3 0.03 99.29 871130 | 1 0.01 99.30 871226 | 1 0.01 99.31 871231 | 14 0.14 99.45 880101 | 1 0.01 99.46 880131 | 1 0.01 99.47 880331 | 3 0.03 99.50 880430 | 3 0.03 99.53 880531 | 10 0.10 99.63 880618 | 1 0.01 99.64 880626 | 1 0.01 99.65 880630 | 31 0.31 99.96 880831 | 4 0.04 100.00 ------------+----------------------------------- Total | 10,000 100.00 by Jean Roth , jroth@nber.org , 26 Jan 2016