Frequencies for first 10,000 rows of head_trma_bed_cnt variable in pos1993 dataset : special | care | beds-head | trauma | Freq. Percent Cum. ------------+----------------------------------- 0 | 9,996 99.96 99.96 1 | 1 0.01 99.97 2 | 1 0.01 99.98 72 | 1 0.01 99.99 136 | 1 0.01 100.00 ------------+----------------------------------- Total | 10,000 100.00 by Jean Roth , jroth@nber.org , 17 May 2017