Frequencies for first 10,000 rows of hospcode variable in nhamcsopd2003 dataset :

   hospital |
       code |      Freq.     Percent        Cum.
------------+-----------------------------------
          1 |        189        1.89        1.89
          2 |         23        0.23        2.12
          3 |        145        1.45        3.57
          4 |        135        1.35        4.92
          5 |         37        0.37        5.29
          6 |        251        2.51        7.80
          7 |         42        0.42        8.22
          8 |        264        2.64       10.86
          9 |         90        0.90       11.76
         10 |        135        1.35       13.11
         11 |        162        1.62       14.73
         12 |        156        1.56       16.29
         13 |         37        0.37       16.66
         14 |        214        2.14       18.80
         15 |        210        2.10       20.90
         16 |        210        2.10       23.00
         17 |        112        1.12       24.12
         18 |         54        0.54       24.66
         19 |        159        1.59       26.25
         20 |        279        2.79       29.04
         21 |        209        2.09       31.13
         22 |        252        2.52       33.65
         23 |        272        2.72       36.37
         24 |        103        1.03       37.40
         25 |        138        1.38       38.78
         26 |        290        2.90       41.68
         27 |        210        2.10       43.78
         28 |        130        1.30       45.08
         29 |        118        1.18       46.26
         30 |         76        0.76       47.02
         31 |         91        0.91       47.93
         32 |         68        0.68       48.61
         33 |         66        0.66       49.27
         34 |         54        0.54       49.81
         35 |        169        1.69       51.50
         36 |         61        0.61       52.11
         37 |        337        3.37       55.48
         38 |        300        3.00       58.48
         39 |        216        2.16       60.64
         40 |        108        1.08       61.72
         41 |        181        1.81       63.53
         42 |        212        2.12       65.65
         43 |        170        1.70       67.35
         44 |         96        0.96       68.31
         45 |        122        1.22       69.53
         46 |        284        2.84       72.37
         47 |         45        0.45       72.82
         48 |        162        1.62       74.44
         49 |        122        1.22       75.66
         50 |        175        1.75       77.41
         51 |         58        0.58       77.99
         52 |        175        1.75       79.74
         53 |        143        1.43       81.17
         54 |        145        1.45       82.62
         55 |        106        1.06       83.68
         56 |        116        1.16       84.84
         57 |         47        0.47       85.31
         58 |         72        0.72       86.03
         59 |         53        0.53       86.56
         60 |         87        0.87       87.43
         61 |        196        1.96       89.39
         62 |        128        1.28       90.67
         63 |        205        2.05       92.72
         64 |        279        2.79       95.51
         65 |        328        3.28       98.79
         66 |        121        1.21      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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