Frequencies for first 10,000 rows of wksht_cd variable in hosp_nmrc_wksht_clmn_ wksht_cd | Freq. Percent Cum. ------------+----------------------------------- A000000 | 8,396 83.96 83.96 A6000A0 | 1,600 16.00 99.96 A6000B0 | 4 0.04 100.00 ------------+----------------------------------- Total | 10,000 100.00 by Jean Roth , jroth@nber.org , 24 Aug 2018