Frequencies for first 10,000 rows of prov0625 variable in pos2008 dataset :

        ltc |
  agreement |
ending date |      Freq.     Percent        Cum.
------------+-----------------------------------
            |      9,928       99.28       99.28
   19870228 |          1        0.01       99.29
   19960930 |          5        0.05       99.34
   19970425 |          1        0.01       99.35
   19970630 |          1        0.01       99.36
   19980731 |          1        0.01       99.37
   20030331 |          1        0.01       99.38
   20040629 |          1        0.01       99.39
   20040731 |          1        0.01       99.40
   20041021 |          1        0.01       99.41
   20041031 |          1        0.01       99.42
   20081115 |          1        0.01       99.43
   20090331 |          2        0.02       99.45
   20090430 |          2        0.02       99.47
   20090531 |          6        0.06       99.53
   20090630 |          3        0.03       99.56
   20090831 |          3        0.03       99.59
   20090930 |         10        0.10       99.69
   20091001 |          1        0.01       99.70
   20091005 |          1        0.01       99.71
   20091031 |          4        0.04       99.75
   20091130 |          3        0.03       99.78
   20091231 |         10        0.10       99.88
   20100131 |          3        0.03       99.91
   20100228 |          6        0.06       99.97
   20100430 |          3        0.03      100.00
------------+-----------------------------------
      Total |     10,000      100.00

by Jean Roth , jroth@nber.org , 17 May 2017