Frequencies for first 10,000 rows of prov0630 variable in pos2002 dataset :

        ltc |
  agreement |
  extension |
       date |      Freq.     Percent        Cum.
------------+-----------------------------------
            |      9,956       99.56       99.56
   19850228 |          1        0.01       99.57
   19881231 |          1        0.01       99.58
   19900731 |          1        0.01       99.59
   19910131 |          2        0.02       99.61
   19910430 |          1        0.01       99.62
   19910831 |          1        0.01       99.63
   19910930 |          2        0.02       99.65
   19911231 |          1        0.01       99.66
   19920229 |          2        0.02       99.68
   19920331 |          1        0.01       99.69
   19920430 |          1        0.01       99.70
   19920630 |          1        0.01       99.71
   19920831 |          2        0.02       99.73
   19921031 |          1        0.01       99.74
   19921130 |          2        0.02       99.76
   19930228 |          1        0.01       99.77
   19930430 |          2        0.02       99.79
   19930830 |          1        0.01       99.80
   19940228 |          1        0.01       99.81
   19960630 |          1        0.01       99.82
   19991031 |          1        0.01       99.83
   20000331 |          1        0.01       99.84
   20020930 |          1        0.01       99.85
   20021130 |          2        0.02       99.87
   20021231 |          6        0.06       99.93
   20030228 |          6        0.06       99.99
   20030430 |          1        0.01      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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