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

TRANSPORTED |
        FOR |
  TREATMENT |
         BY |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |      5,151       51.51       51.51
          1 |      4,540       45.40       96.91
          2 |         27        0.27       97.18
          3 |        114        1.14       98.32
          4 |          8        0.08       98.40
          9 |        160        1.60      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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