Frequencies for first 10,000 rows of prov2470 variable in pos1995 dataset :

  srv: self |
  care unit |      Freq.     Percent        Cum.
------------+-----------------------------------
            |      8,933       89.33       89.33
          0 |      1,051       10.51       99.84
          1 |          6        0.06       99.90
          2 |          8        0.08       99.98
          3 |          2        0.02      100.00
------------+-----------------------------------
      Total |     10,000      100.00

by Jean Roth , jroth@nber.org , 26 Jan 2016