Frequencies for first 10,000 rows of neontl_nrsry_srvc_cd variable in pos2006 dataset : srv: | neonatal | nursery | Freq. Percent Cum. ------------+----------------------------------- | 8,710 87.10 87.10 0 | 860 8.60 95.70 1 | 376 3.76 99.46 2 | 38 0.38 99.84 3 | 16 0.16 100.00 ------------+----------------------------------- Total | 10,000 100.00 by Jean Roth , jroth@nber.org , 17 May 2017