Frequencies for first 10,000 rows of hospcode variable in nhamcsopd2009 dataset :

   hospital |
       code |      Freq.     Percent        Cum.
------------+-----------------------------------
          1 |        155        1.55        1.55
          2 |        340        3.40        4.95
          3 |        139        1.39        6.34
          4 |         84        0.84        7.18
          5 |        160        1.60        8.78
          6 |        114        1.14        9.92
          7 |        310        3.10       13.02
          8 |        189        1.89       14.91
          9 |         68        0.68       15.59
         10 |        114        1.14       16.73
         11 |        294        2.94       19.67
         12 |        155        1.55       21.22
         13 |        150        1.50       22.72
         14 |        118        1.18       23.90
         15 |        200        2.00       25.90
         16 |        100        1.00       26.90
         17 |        177        1.77       28.67
         18 |        303        3.03       31.70
         19 |        341        3.41       35.11
         20 |        312        3.12       38.23
         21 |        450        4.50       42.73
         22 |        153        1.53       44.26
         23 |         47        0.47       44.73
         24 |        149        1.49       46.22
         25 |         98        0.98       47.20
         26 |        126        1.26       48.46
         27 |        112        1.12       49.58
         28 |         87        0.87       50.45
         29 |        160        1.60       52.05
         30 |         95        0.95       53.00
         31 |         29        0.29       53.29
         32 |        317        3.17       56.46
         33 |        231        2.31       58.77
         34 |         82        0.82       59.59
         35 |         24        0.24       59.83
         36 |         93        0.93       60.76
         37 |        136        1.36       62.12
         38 |        212        2.12       64.24
         39 |        195        1.95       66.19
         40 |         36        0.36       66.55
         41 |        155        1.55       68.10
         42 |        206        2.06       70.16
         43 |        138        1.38       71.54
         44 |         98        0.98       72.52
         45 |        212        2.12       74.64
         46 |         46        0.46       75.10
         47 |         95        0.95       76.05
         48 |         74        0.74       76.79
         49 |        117        1.17       77.96
         50 |        284        2.84       80.80
         51 |         62        0.62       81.42
         52 |         93        0.93       82.35
         53 |        156        1.56       83.91
         54 |         51        0.51       84.42
         55 |         33        0.33       84.75
         56 |        208        2.08       86.83
         57 |        168        1.68       88.51
         58 |        173        1.73       90.24
         59 |        288        2.88       93.12
         60 |          9        0.09       93.21
         61 |        283        2.83       96.04
         62 |        163        1.63       97.67
         63 |        118        1.18       98.85
         64 |        115        1.15      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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