Frequencies for first 10,000 rows of prov1635 variable in pos2009 dataset :

  PRIOR LTC |
  EXTENSION |
       DATE |      Freq.     Percent        Cum.
------------+-----------------------------------
            |      9,993       99.93       99.93
   19951201 |          3        0.03       99.96
   19960930 |          1        0.01       99.97
   20091130 |          3        0.03      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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