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

TRANSPORTED |
        FOR |
  TREATMENT |
         BY |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |      5,232       52.32       52.32
          1 |      4,554       45.54       97.86
          2 |          9        0.09       97.95
          3 |         69        0.69       98.64
          4 |         12        0.12       98.76
          9 |        124        1.24      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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