Frequencies for first 10,000 rows of prov0905 variable in pos1995 dataset : special | care | beds-head | trauma | Freq. Percent Cum. ------------+----------------------------------- 0 | 9,993 99.93 99.93 1 | 2 0.02 99.95 2 | 1 0.01 99.96 24 | 1 0.01 99.97 72 | 1 0.01 99.98 140 | 1 0.01 99.99 205 | 1 0.01 100.00 ------------+----------------------------------- Total | 10,000 100.00 by Jean Roth , jroth@nber.org , 26 Jan 2016