Frequencies for first 10,000 rows of prov0630 variable in pos2003 dataset :

        ltc |
  agreement |
  extension |
       date |      Freq.     Percent        Cum.
------------+-----------------------------------
            |      9,976       99.76       99.76
   19881231 |          1        0.01       99.77
   19910430 |          1        0.01       99.78
   19921031 |          1        0.01       99.79
   19960630 |          1        0.01       99.80
   19991031 |          1        0.01       99.81
   20020930 |          1        0.01       99.82
   20030831 |          1        0.01       99.83
   20030930 |          1        0.01       99.84
   20031031 |          2        0.02       99.86
   20031231 |          5        0.05       99.91
   20040131 |          1        0.01       99.92
   20040229 |          8        0.08      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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