Frequencies for first 10,000 rows of mdctn_aide_cntrct_cnt variable in pos2007 dataset : medication | aides/techs | -contract | Freq. Percent Cum. ------------+----------------------------------- 0 | 9,997 99.97 99.97 .11 | 1 0.01 99.98 .14 | 1 0.01 99.99 .17 | 1 0.01 100.00 ------------+----------------------------------- Total | 10,000 100.00 by Jean Roth , jroth@nber.org , 17 May 2017