Frequencies for first 10,000 rows of prov0620 variable in pos2007 dataset :

        ltc |
  agreement |
  beginning |
       date |      Freq.     Percent        Cum.
------------+-----------------------------------
            |      9,928       99.28       99.28
   19860301 |          1        0.01       99.29
   19951001 |          5        0.05       99.34
   19960425 |          1        0.01       99.35
   19960701 |          1        0.01       99.36
   19970801 |          1        0.01       99.37
   20020401 |          1        0.01       99.38
   20030701 |          1        0.01       99.39
   20030801 |          1        0.01       99.40
   20031101 |          2        0.02       99.42
   20061001 |          2        0.02       99.44
   20061006 |          1        0.01       99.45
   20061201 |          1        0.01       99.46
   20061209 |          1        0.01       99.47
   20070201 |          2        0.02       99.49
   20070301 |          1        0.01       99.50
   20070501 |          1        0.01       99.51
   20070601 |          5        0.05       99.56
   20070701 |          3        0.03       99.59
   20070801 |          1        0.01       99.60
   20070901 |          3        0.03       99.63
   20071001 |          9        0.09       99.72
   20071101 |          3        0.03       99.75
   20071201 |          2        0.02       99.77
   20080101 |         10        0.10       99.87
   20080201 |          3        0.03       99.90
   20080301 |          6        0.06       99.96
   20080501 |          3        0.03       99.99
   20080601 |          1        0.01      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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