Frequencies for first 10,000 rows of emer_use variable in person dataset :

  EMERGENCY |
        USE |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |      9,313       93.13       93.13
          1 |          5        0.05       93.18
          . |        682        6.82      100.00
------------+-----------------------------------
      Total |     10,000      100.00

by Jean Roth , jroth@nber.org , 18 Apr 2016