Frequencies for first 10,000 rows of prov2880 variable in posclia1998 dataset :

   prov2880 |      Freq.     Percent        Cum.
------------+-----------------------------------
            |      8,038       80.38       80.38
          1 |        505        5.05       85.43
          2 |      1,456       14.56       99.99
          3 |          1        0.01      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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