Frequencies for first 10,000 rows of hospcode variable in nhamcsopd2006 dataset :

   hospital |
       code |      Freq.     Percent        Cum.
------------+-----------------------------------
          1 |        191        1.91        1.91
          2 |        123        1.23        3.14
          3 |         89        0.89        4.03
          4 |        122        1.22        5.25
          6 |        208        2.08        7.33
          7 |        280        2.80       10.13
          8 |        249        2.49       12.62
          9 |        116        1.16       13.78
         10 |         70        0.70       14.48
         11 |        185        1.85       16.33
         12 |        148        1.48       17.81
         13 |        176        1.76       19.57
         14 |        163        1.63       21.20
         15 |        176        1.76       22.96
         16 |        312        3.12       26.08
         17 |         63        0.63       26.71
         18 |         72        0.72       27.43
         19 |        156        1.56       28.99
         20 |        102        1.02       30.01
         21 |        285        2.85       32.86
         22 |         37        0.37       33.23
         23 |         91        0.91       34.14
         24 |        199        1.99       36.13
         25 |         33        0.33       36.46
         27 |         84        0.84       37.30
         28 |        236        2.36       39.66
         29 |        205        2.05       41.71
         30 |         65        0.65       42.36
         31 |         38        0.38       42.74
         32 |         85        0.85       43.59
         33 |         79        0.79       44.38
         34 |        196        1.96       46.34
         35 |        105        1.05       47.39
         36 |         56        0.56       47.95
         37 |        142        1.42       49.37
         38 |        161        1.61       50.98
         39 |        144        1.44       52.42
         40 |        205        2.05       54.47
         41 |        182        1.82       56.29
         42 |        233        2.33       58.62
         43 |        117        1.17       59.79
         44 |        313        3.13       62.92
         45 |         66        0.66       63.58
         46 |         26        0.26       63.84
         47 |         90        0.90       64.74
         48 |        120        1.20       65.94
         49 |         36        0.36       66.30
         50 |         63        0.63       66.93
         51 |        141        1.41       68.34
         52 |         44        0.44       68.78
         53 |        151        1.51       70.29
         54 |        338        3.38       73.67
         55 |        205        2.05       75.72
         56 |         78        0.78       76.50
         57 |         66        0.66       77.16
         58 |         62        0.62       77.78
         59 |         58        0.58       78.36
         60 |        106        1.06       79.42
         61 |        222        2.22       81.64
         62 |        141        1.41       83.05
         63 |        347        3.47       86.52
         64 |        241        2.41       88.93
         65 |        181        1.81       90.74
         66 |         57        0.57       91.31
         67 |         48        0.48       91.79
         68 |        126        1.26       93.05
         69 |        311        3.11       96.16
         70 |        227        2.27       98.43
         71 |         98        0.98       99.41
         72 |         59        0.59      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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