Frequencies for first 10,000 rows of prov2340 variable in pos1997 dataset :

 srv: other |      Freq.     Percent        Cum.
------------+-----------------------------------
            |      7,655       76.55       76.55
          0 |      1,213       12.13       88.68
          1 |        448        4.48       93.16
          2 |        127        1.27       94.43
          3 |         13        0.13       94.56
          N |        389        3.89       98.45
          Y |        155        1.55      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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