Frequencies for first 10,000 rows of prov2340 variable in pos1995 dataset :

 srv: other |      Freq.     Percent        Cum.
------------+-----------------------------------
            |      8,015       80.15       80.15
          0 |      1,004       10.04       90.19
          1 |        433        4.33       94.52
          2 |         89        0.89       95.41
          3 |         11        0.11       95.52
          N |        328        3.28       98.80
          Y |        120        1.20      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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