Frequencies for first 10,000 rows of hospcode variable in nhamcsopd1994 dataset :

   hospital |
       code |      Freq.     Percent        Cum.
------------+-----------------------------------
          1 |        151        1.51        1.51
          2 |        130        1.30        2.81
          3 |        212        2.12        4.93
          5 |        113        1.13        6.06
          6 |        165        1.65        7.71
         12 |        124        1.24        8.95
         15 |        156        1.56       10.51
         16 |        115        1.15       11.66
         19 |          3        0.03       11.69
         26 |         96        0.96       12.65
         29 |        162        1.62       14.27
         32 |        216        2.16       16.43
         36 |        145        1.45       17.88
         38 |        181        1.81       19.69
         43 |        138        1.38       21.07
         44 |         80        0.80       21.87
         45 |        169        1.69       23.56
         47 |        169        1.69       25.25
         48 |        176        1.76       27.01
         55 |        120        1.20       28.21
         64 |        123        1.23       29.44
         68 |        104        1.04       30.48
         70 |        174        1.74       32.22
         72 |        137        1.37       33.59
         74 |        160        1.60       35.19
         76 |        102        1.02       36.21
         78 |        144        1.44       37.65
         79 |         78        0.78       38.43
         80 |         58        0.58       39.01
         81 |        126        1.26       40.27
         92 |        161        1.61       41.88
         99 |         96        0.96       42.84
        100 |        172        1.72       44.56
        101 |        178        1.78       46.34
        109 |        113        1.13       47.47
        113 |         58        0.58       48.05
        114 |        127        1.27       49.32
        115 |         20        0.20       49.52
        118 |        149        1.49       51.01
        122 |        141        1.41       52.42
        134 |        128        1.28       53.70
        135 |        112        1.12       54.82
        136 |        133        1.33       56.15
        140 |        135        1.35       57.50
        146 |        128        1.28       58.78
        151 |        108        1.08       59.86
        152 |        195        1.95       61.81
        169 |        169        1.69       63.50
        171 |        199        1.99       65.49
        174 |        140        1.40       66.89
        175 |        142        1.42       68.31
        178 |        121        1.21       69.52
        180 |        184        1.84       71.36
        184 |        230        2.30       73.66
        185 |        128        1.28       74.94
        187 |        141        1.41       76.35
        189 |        155        1.55       77.90
        192 |        158        1.58       79.48
        193 |          7        0.07       79.55
        194 |        137        1.37       80.92
        200 |         28        0.28       81.20
        203 |        209        2.09       83.29
        206 |        150        1.50       84.79
        207 |        115        1.15       85.94
        209 |        130        1.30       87.24
        211 |        149        1.49       88.73
        213 |        148        1.48       90.21
        216 |        213        2.13       92.34
        219 |        133        1.33       93.67
        220 |         73        0.73       94.40
        221 |          2        0.02       94.42
        223 |        145        1.45       95.87
        226 |        116        1.16       97.03
        228 |        160        1.60       98.63
        229 |        137        1.37      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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