Frequencies for first 10,000 rows of clinic variable in nhamcsopd2002 dataset :

   hospital |
clinic/emer |
      gency |
    service |
area marker |      Freq.     Percent        Cum.
------------+-----------------------------------
          1 |      1,649       16.49       16.49
          2 |      1,500       15.00       31.49
          3 |      1,217       12.17       43.66
          4 |        957        9.57       53.23
          5 |        947        9.47       62.70
          6 |        879        8.79       71.49
          7 |        852        8.52       80.01
          8 |        560        5.60       85.61
          9 |        408        4.08       89.69
         10 |        468        4.68       94.37
         11 |        285        2.85       97.22
         12 |        164        1.64       98.86
         13 |         65        0.65       99.51
         14 |         25        0.25       99.76
         15 |         24        0.24      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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