Frequencies for first 10,000 rows of acc_opdtshot variable in mcbsatc2013 datas Reason for | OPD visit: | treatment | shot | Freq. Percent Cum. ------------+----------------------------------- -8 | 240 2.40 2.40 -7 | 2 0.02 2.42 1 | 122 1.22 3.64 2 | 3,533 35.33 38.97 . | 6,103 61.03 100.00 ------------+----------------------------------- Total | 10,000 100.00 by Jean Roth , jroth@nber.org , 24 May 2016