Frequencies for first 10,000 rows of aut_rest variable in person dataset : Automatic | Restraint-F | unction | Freq. Percent Cum. ------------+----------------------------------- 0 | 9,803 98.03 98.03 1 | 3 0.03 98.06 2 | 5 0.05 98.11 3 | 2 0.02 98.13 9 | 187 1.87 100.00 ------------+----------------------------------- Total | 10,000 100.00 by Jean Roth , jroth@nber.org , 18 Apr 2016