Frequencies for first 10,000 rows of prov3560 variable in posclia1997 dataset :

   prov3560 |      Freq.     Percent        Cum.
------------+-----------------------------------
            |         11        0.11        0.11
         01 |      2,267       22.67       22.78
         02 |        478        4.78       27.56
         03 |      6,150       61.50       89.06
         04 |        936        9.36       98.42
         05 |        158        1.58      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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