Frequencies for first 10,000 rows of prov0630 variable in pos1996 dataset :

        ltc |
  agreement |
  extension |
       date |      Freq.     Percent        Cum.
------------+-----------------------------------
            |      9,938       99.38       99.38
   19850228 |          1        0.01       99.39
   19881231 |          1        0.01       99.40
   19900731 |          1        0.01       99.41
   19910131 |          2        0.02       99.43
   19910430 |          1        0.01       99.44
   19910831 |          1        0.01       99.45
   19910930 |          3        0.03       99.48
   19911231 |          1        0.01       99.49
   19920229 |          3        0.03       99.52
   19920331 |          1        0.01       99.53
   19920430 |          1        0.01       99.54
   19920531 |          1        0.01       99.55
   19920630 |          1        0.01       99.56
   19920831 |          2        0.02       99.58
   19921031 |          2        0.02       99.60
   19921130 |          2        0.02       99.62
   19930131 |          1        0.01       99.63
   19930228 |          1        0.01       99.64
   19930430 |          2        0.02       99.66
   19930830 |          1        0.01       99.67
   19931031 |          1        0.01       99.68
   19940228 |          1        0.01       99.69
   19940331 |          1        0.01       99.70
   19940430 |          1        0.01       99.71
   19940531 |          1        0.01       99.72
   19940731 |          2        0.02       99.74
   19951231 |          1        0.01       99.75
   19960630 |          1        0.01       99.76
   19960831 |          1        0.01       99.77
   19961031 |          1        0.01       99.78
   19961130 |          5        0.05       99.83
   19961231 |          1        0.01       99.84
   19970131 |          4        0.04       99.88
   19970228 |          9        0.09       99.97
   19970331 |          2        0.02       99.99
   19971015 |          1        0.01      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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