Frequencies for first 10,000 rows of nselfpay variable in namcs2003 dataset :

    for new |
  patients, |
       phys |
   accepts: |
   self-pay |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |        456        4.56        4.56
          1 |      8,957       89.57       94.13
          2 |        326        3.26       97.39
          3 |        261        2.61      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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