Frequencies for first 10,000 rows of admdiv variable in nhamcsed2009 dataset :

  does your |
   hospital |
continue to |
      admit |
elective or |
   schedule |
    surgery |
 cases when |
        ed  |      Freq.     Percent        Cum.
------------+-----------------------------------
         -9 |         89        0.89        0.89
         -8 |        716        7.16        8.05
         -7 |      3,968       39.68       47.73
          1 |      4,914       49.14       96.87
          2 |        313        3.13      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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