Frequencies for first 10,000 rows of hospcode variable in nhamcsopd1996 dataset :

   hospital |
       code |      Freq.     Percent        Cum.
------------+-----------------------------------
          1 |        170        1.70        1.70
          3 |        115        1.15        2.85
          4 |        171        1.71        4.56
         16 |         86        0.86        5.42
         17 |        105        1.05        6.47
         18 |        152        1.52        7.99
         19 |        189        1.89        9.88
         22 |        117        1.17       11.05
         24 |        102        1.02       12.07
         28 |        206        2.06       14.13
         32 |        130        1.30       15.43
         33 |        162        1.62       17.05
         34 |        153        1.53       18.58
         35 |         88        0.88       19.46
         36 |        149        1.49       20.95
         38 |        112        1.12       22.07
         41 |        140        1.40       23.47
         50 |        128        1.28       24.75
         53 |         61        0.61       25.36
         56 |        135        1.35       26.71
         66 |        115        1.15       27.86
         69 |        141        1.41       29.27
         71 |         93        0.93       30.20
         72 |        166        1.66       31.86
         73 |        148        1.48       33.34
         79 |         63        0.63       33.97
         80 |        170        1.70       35.67
         82 |         54        0.54       36.21
         87 |        141        1.41       37.62
         92 |        145        1.45       39.07
         97 |        140        1.40       40.47
        102 |        193        1.93       42.40
        104 |        185        1.85       44.25
        111 |        162        1.62       45.87
        115 |        139        1.39       47.26
        117 |        154        1.54       48.80
        118 |        159        1.59       50.39
        122 |        132        1.32       51.71
        127 |         91        0.91       52.62
        129 |        119        1.19       53.81
        130 |        150        1.50       55.31
        132 |         98        0.98       56.29
        133 |        132        1.32       57.61
        136 |        113        1.13       58.74
        138 |         79        0.79       59.53
        140 |        166        1.66       61.19
        144 |        150        1.50       62.69
        145 |        126        1.26       63.95
        146 |        154        1.54       65.49
        150 |        124        1.24       66.73
        151 |        167        1.67       68.40
        154 |        156        1.56       69.96
        160 |        174        1.74       71.70
        163 |        117        1.17       72.87
        165 |        202        2.02       74.89
        168 |        137        1.37       76.26
        171 |        123        1.23       77.49
        173 |        130        1.30       78.79
        175 |         27        0.27       79.06
        176 |        142        1.42       80.48
        179 |         96        0.96       81.44
        182 |        103        1.03       82.47
        191 |        106        1.06       83.53
        193 |        174        1.74       85.27
        199 |        225        2.25       87.52
        200 |        195        1.95       89.47
        201 |        118        1.18       90.65
        204 |        131        1.31       91.96
        207 |         89        0.89       92.85
        209 |        156        1.56       94.41
        221 |         95        0.95       95.36
        225 |        177        1.77       97.13
        229 |        120        1.20       98.33
        230 |         33        0.33       98.66
        233 |        134        1.34      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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