Frequencies for first 10,000 rows of prov0500 variable in posclia1997 dataset :

   prov0500 |      Freq.     Percent        Cum.
------------+-----------------------------------
            |      9,902       99.02       99.02
   19930127 |          1        0.01       99.03
   19930128 |          1        0.01       99.04
   19930406 |          1        0.01       99.05
   19930611 |          1        0.01       99.06
   19930615 |          1        0.01       99.07
   19930616 |          1        0.01       99.08
   19930622 |          1        0.01       99.09
   19930623 |          1        0.01       99.10
   19930624 |          1        0.01       99.11
   19930727 |          1        0.01       99.12
   19930728 |          1        0.01       99.13
   19930729 |          1        0.01       99.14
   19930811 |          1        0.01       99.15
   19930920 |          2        0.02       99.17
   19930921 |          1        0.01       99.18
   19930922 |          1        0.01       99.19
   19930924 |          1        0.01       99.20
   19930930 |          1        0.01       99.21
   19931102 |          1        0.01       99.22
   19931116 |          1        0.01       99.23
   19931117 |          1        0.01       99.24
   19931118 |          1        0.01       99.25
   19931228 |          1        0.01       99.26
   19931229 |          1        0.01       99.27
   19931230 |          1        0.01       99.28
   19940217 |          1        0.01       99.29
   19940324 |          1        0.01       99.30
   19940421 |          1        0.01       99.31
   19940422 |          1        0.01       99.32
   19940608 |          1        0.01       99.33
   19940706 |          1        0.01       99.34
   19940707 |          1        0.01       99.35
   19940815 |          1        0.01       99.36
   19940823 |          1        0.01       99.37
   19940825 |          1        0.01       99.38
   19941025 |          1        0.01       99.39
   19941026 |          1        0.01       99.40
   19941027 |          1        0.01       99.41
   19941207 |          1        0.01       99.42
   19941213 |          1        0.01       99.43
   19950223 |          1        0.01       99.44
   19950331 |          2        0.02       99.46
   19950517 |          1        0.01       99.47
   19950518 |          2        0.02       99.49
   19950621 |          1        0.01       99.50
   19950627 |          1        0.01       99.51
   19950628 |          2        0.02       99.53
   19950711 |          1        0.01       99.54
   19950719 |          1        0.01       99.55
   19950731 |          1        0.01       99.56
   19950801 |          1        0.01       99.57
   19950802 |          1        0.01       99.58
   19950905 |          1        0.01       99.59
   19950906 |          2        0.02       99.61
   19950907 |          1        0.01       99.62
   19960124 |          1        0.01       99.63
   19960221 |          2        0.02       99.65
   19960222 |          3        0.03       99.68
   19960223 |          1        0.01       99.69
   19960418 |          1        0.01       99.70
   19960605 |          1        0.01       99.71
   19960613 |          1        0.01       99.72
   19960618 |          2        0.02       99.74
   19960619 |          2        0.02       99.76
   19960620 |          1        0.01       99.77
   19960626 |          1        0.01       99.78
   19960627 |          1        0.01       99.79
   19960808 |          1        0.01       99.80
   19960809 |          1        0.01       99.81
   19960911 |          2        0.02       99.83
   19961101 |          1        0.01       99.84
   19961211 |          1        0.01       99.85
   19970122 |          1        0.01       99.86
   19970430 |          1        0.01       99.87
   19970618 |          1        0.01       99.88
   19970708 |          1        0.01       99.89
   19970710 |          1        0.01       99.90
   19970715 |          1        0.01       99.91
   19970716 |          2        0.02       99.93
   19970717 |          1        0.01       99.94
   19970723 |          2        0.02       99.96
   19970724 |          1        0.01       99.97
   19970725 |          1        0.01       99.98
   19970923 |          1        0.01       99.99
   19971024 |          1        0.01      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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