Frequencies for first 10,000 rows of nnochrge variable in namcs2004 dataset :

    for new |
  patients, |
       phys |
accepts: no |
     charge |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |        437        4.37        4.37
          1 |      4,728       47.28       51.65
          2 |      4,038       40.38       92.03
          3 |        797        7.97      100.00
------------+-----------------------------------
      Total |     10,000      100.00

by Jean Roth , jroth@nber.org , 28 Mar 2016