Frequencies for first 10,000 rows of prov2880 variable in posclia2004 dataset :

   prov2880 |      Freq.     Percent        Cum.
------------+-----------------------------------
            |      7,877       78.77       78.77
          1 |        608        6.08       84.85
          2 |      1,503       15.03       99.88
          5 |         12        0.12      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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