Frequencies for first 10,000 rows of prov1615 variable in posclia1998 dataset :

   prov1615 |      Freq.     Percent        Cum.
------------+-----------------------------------
            |      9,944       99.44       99.44
   19941228 |          1        0.01       99.45
   19950103 |          1        0.01       99.46
   19950116 |          1        0.01       99.47
   19950428 |          1        0.01       99.48
   19950501 |          1        0.01       99.49
   19950801 |          1        0.01       99.50
   19950903 |          1        0.01       99.51
   19951101 |          1        0.01       99.52
   19951107 |          1        0.01       99.53
   19951201 |          1        0.01       99.54
   19960101 |         14        0.14       99.68
   19960126 |          1        0.01       99.69
   19960201 |          1        0.01       99.70
   19960301 |          1        0.01       99.71
   19960401 |          1        0.01       99.72
   19960524 |          4        0.04       99.76
   19960601 |          1        0.01       99.77
   19960701 |          2        0.02       99.79
   19960901 |          1        0.01       99.80
   19960905 |          3        0.03       99.83
   19961104 |          1        0.01       99.84
   19961106 |          1        0.01       99.85
   19970101 |          3        0.03       99.88
   19970131 |          1        0.01       99.89
   19970301 |          1        0.01       99.90
   19970310 |          1        0.01       99.91
   19970515 |          3        0.03       99.94
   19970602 |          1        0.01       99.95
   19970708 |          2        0.02       99.97
   19971031 |          1        0.01       99.98
   19980501 |          1        0.01       99.99
   19980902 |          1        0.01      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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