Frequencies for first 10,000 rows of prov2470 variable in pos1994 dataset :

  srv: self |
  care unit |      Freq.     Percent        Cum.
------------+-----------------------------------
            |      8,940       89.40       89.40
          0 |      1,041       10.41       99.81
          1 |          7        0.07       99.88
          2 |          8        0.08       99.96
          3 |          4        0.04      100.00
------------+-----------------------------------
      Total |     10,000      100.00

by Jean Roth , jroth@nber.org , 17 May 2017