Frequencies for first 10,000 rows of prov1635 variable in pos2004 dataset :

  prior ltc |
  extension |
       date |      Freq.     Percent        Cum.
------------+-----------------------------------
            |      9,981       99.81       99.81
   19951201 |          3        0.03       99.84
   19960930 |          1        0.01       99.85
   20040229 |          1        0.01       99.86
   20040531 |          5        0.05       99.91
   20040831 |          1        0.01       99.92
   20040930 |          7        0.07       99.99
   20041031 |          1        0.01      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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