Frequencies for first 10,000 rows of mdcl_scl_srvc_cd variable in pos2012 datas Service: | Medical | Social | Freq. Percent Cum. ------------+----------------------------------- . | 8,118 81.18 81.18 0 | 294 2.94 84.12 1 | 1,255 12.55 96.67 2 | 238 2.38 99.05 3 | 95 0.95 100.00 ------------+----------------------------------- Total | 10,000 100.00 by Jean Roth , jroth@nber.org , 26 Jan 2016