Frequencies for first 10,000 rows of hospital variable in person dataset :

TRANSPORTED |
        FOR |
  TREATMENT |
         BY |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |      5,074       50.74       50.74
          1 |      4,636       46.36       97.10
          2 |         12        0.12       97.22
          3 |         62        0.62       97.84
          4 |         20        0.20       98.04
          9 |        196        1.96      100.00
------------+-----------------------------------
      Total |     10,000      100.00

by Jean Roth , jroth@nber.org , 18 Apr 2016