Frequencies for first 10,000 rows of prov1655 variable in pos1992 dataset :

      prior |
survey: all |
       cops |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |      9,125       91.25       91.25
          1 |        591        5.91       97.16
          2 |        150        1.50       98.66
          3 |         59        0.59       99.25
          4 |         43        0.43       99.68
          5 |         15        0.15       99.83
          6 |          7        0.07       99.90
          7 |          5        0.05       99.95
          8 |          5        0.05      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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