Frequencies for first 10,000 rows of chow_prior_dt variable in posclia2013 data

 Prior CHOW |
       Date |      Freq.     Percent        Cum.
------------+-----------------------------------
   1.99e+07 |          1        0.01        0.01
   1.99e+07 |          2        0.02        0.03
   1.99e+07 |          1        0.01        0.04
   2.00e+07 |          1        0.01        0.05
   2.00e+07 |          1        0.01        0.06
   2.00e+07 |          1        0.01        0.07
   2.00e+07 |          1        0.01        0.08
   2.00e+07 |          1        0.01        0.09
   2.00e+07 |          1        0.01        0.10
   2.00e+07 |          1        0.01        0.11
   2.00e+07 |          1        0.01        0.12
   2.00e+07 |          1        0.01        0.13
   2.00e+07 |          1        0.01        0.14
   2.00e+07 |          1        0.01        0.15
   2.00e+07 |          1        0.01        0.16
   2.00e+07 |          1        0.01        0.17
   2.00e+07 |          1        0.01        0.18
          . |      9,982       99.82      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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