Frequencies for first 10,000 rows of prov2340 variable in pos1991 dataset :

 srv: other |      Freq.     Percent        Cum.
------------+-----------------------------------
            |      8,247       82.47       82.47
          0 |      1,156       11.56       94.03
          1 |        193        1.93       95.96
          2 |         82        0.82       96.78
          3 |          5        0.05       96.83
          N |        248        2.48       99.31
          Y |         69        0.69      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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