Frequencies for first 10,000 rows of fmapsr variable in natl1978 dataset : Five Minute | Apgar Score | Recode | Freq. Percent Cum. ------------+----------------------------------- 1 | 58 0.58 0.58 2 | 144 1.44 2.02 3 | 986 9.86 11.88 4 | 8,720 87.20 99.08 5 | 92 0.92 100.00 ------------+----------------------------------- Total | 10,000 100.00 by Jean Roth , jroth@nber.org , 3 Jan 2016