Frequencies for first 10,000 rows of prov2120 variable in pos1999 dataset : srv: dental | Freq. Percent Cum. ------------+----------------------------------- | 8,885 88.85 88.85 0 | 824 8.24 97.09 1 | 127 1.27 98.36 2 | 143 1.43 99.79 3 | 21 0.21 100.00 ------------+----------------------------------- Total | 10,000 100.00 by Jean Roth , jroth@nber.org , 26 Jan 2016