Frequencies for first 10,000 rows of prov2470 variable in pos1992 dataset :

  srv: self |
  care unit |      Freq.     Percent        Cum.
------------+-----------------------------------
            |      8,851       88.51       88.51
          0 |      1,123       11.23       99.74
          1 |         12        0.12       99.86
          2 |          8        0.08       99.94
          3 |          6        0.06      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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