Frequencies for first 10,000 rows of nummed variable in namcs2002 dataset : Number of | medications | Freq. Percent Cum. ------------+----------------------------------- 0 | 3,903 39.03 39.03 1 | 2,572 25.72 64.75 2 | 1,510 15.10 79.85 3 | 804 8.04 87.89 4 | 372 3.72 91.61 5 | 218 2.18 93.79 6 | 621 6.21 100.00 ------------+----------------------------------- Total | 10,000 100.00 by Jean Roth , jroth@nber.org , 28 Mar 2016