Frequencies for first 10,000 rows of hospcode variable in nhamcsopd2011 dataset :

   Hospital |
       code |      Freq.     Percent        Cum.
------------+-----------------------------------
          1 |        188        1.88        1.88
          2 |        146        1.46        3.34
          3 |         91        0.91        4.25
          4 |        334        3.34        7.59
          5 |        214        2.14        9.73
          6 |         67        0.67       10.40
          7 |        147        1.47       11.87
          8 |        296        2.96       14.83
          9 |         42        0.42       15.25
         10 |        192        1.92       17.17
         11 |        317        3.17       20.34
         12 |        156        1.56       21.90
         13 |        131        1.31       23.21
         14 |        372        3.72       26.93
         15 |        184        1.84       28.77
         16 |        121        1.21       29.98
         17 |        211        2.11       32.09
         18 |        350        3.50       35.59
         19 |        219        2.19       37.78
         20 |        193        1.93       39.71
         21 |        216        2.16       41.87
         22 |        388        3.88       45.75
         23 |        245        2.45       48.20
         24 |         64        0.64       48.84
         25 |        104        1.04       49.88
         26 |        162        1.62       51.50
         27 |        131        1.31       52.81
         28 |        116        1.16       53.97
         29 |        164        1.64       55.61
         30 |        347        3.47       59.08
         31 |        243        2.43       61.51
         32 |        138        1.38       62.89
         33 |        187        1.87       64.76
         34 |        144        1.44       66.20
         35 |        319        3.19       69.39
         36 |         18        0.18       69.57
         37 |        450        4.50       74.07
         38 |        100        1.00       75.07
         39 |        154        1.54       76.61
         40 |        244        2.44       79.05
         41 |         31        0.31       79.36
         42 |         75        0.75       80.11
         43 |        286        2.86       82.97
         44 |        166        1.66       84.63
         45 |        268        2.68       87.31
         46 |        251        2.51       89.82
         47 |        159        1.59       91.41
         48 |         98        0.98       92.39
         49 |        224        2.24       94.63
         50 |        174        1.74       96.37
         51 |        216        2.16       98.53
         52 |        147        1.47      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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