Frequencies for first 10,000 rows of prov1615 variable in posclia2001 dataset :

   prov1615 |      Freq.     Percent        Cum.
------------+-----------------------------------
            |      9,927       99.27       99.27
   19941228 |          1        0.01       99.28
   19950116 |          1        0.01       99.29
   19950428 |          1        0.01       99.30
   19950501 |          1        0.01       99.31
   19950903 |          1        0.01       99.32
   19951101 |          1        0.01       99.33
   19951201 |          1        0.01       99.34
   19960101 |         10        0.10       99.44
   19960126 |          2        0.02       99.46
   19960201 |          1        0.01       99.47
   19960301 |          1        0.01       99.48
   19960401 |          1        0.01       99.49
   19960503 |          1        0.01       99.50
   19960524 |          1        0.01       99.51
   19960601 |          1        0.01       99.52
   19960701 |          2        0.02       99.54
   19960901 |          1        0.01       99.55
   19961104 |          1        0.01       99.56
   19961106 |          1        0.01       99.57
   19961231 |          1        0.01       99.58
   19970101 |          3        0.03       99.61
   19970301 |          1        0.01       99.62
   19970430 |          1        0.01       99.63
   19970515 |          2        0.02       99.65
   19970602 |          1        0.01       99.66
   19970630 |          1        0.01       99.67
   19970701 |          1        0.01       99.68
   19970708 |          5        0.05       99.73
   19971001 |          2        0.02       99.75
   19971021 |          1        0.01       99.76
   19971031 |          1        0.01       99.77
   19980101 |          1        0.01       99.78
   19980105 |          2        0.02       99.80
   19980301 |          1        0.01       99.81
   19981001 |          1        0.01       99.82
   19981101 |          1        0.01       99.83
   19981229 |          1        0.01       99.84
   19990101 |          1        0.01       99.85
   19990208 |          1        0.01       99.86
   19990209 |          1        0.01       99.87
   19990218 |          1        0.01       99.88
   19990301 |          1        0.01       99.89
   19990311 |          1        0.01       99.90
   19990325 |          1        0.01       99.91
   19990701 |          1        0.01       99.92
   19990820 |          1        0.01       99.93
   19990922 |          1        0.01       99.94
   19991130 |          1        0.01       99.95
   20000101 |          1        0.01       99.96
   20000331 |          1        0.01       99.97
   20000426 |          1        0.01       99.98
   20010209 |          1        0.01       99.99
   20010402 |          1        0.01      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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