Frequencies for centerclassificationdate variable in enfrep20180404 dataset :

     Center |
Classificat |
   ion Date |      Freq.     Percent        Cum.
------------+-----------------------------------
            |          5        3.29        3.29
 03/23/2018 |         20       13.16       16.45
 03/24/2018 |          6        3.95       20.39
 03/26/2018 |         26       17.11       37.50
 03/27/2018 |         42       27.63       65.13
 03/28/2018 |         34       22.37       87.50
 03/29/2018 |         14        9.21       96.71
 03/30/2018 |          5        3.29      100.00
------------+-----------------------------------
      Total |        152      100.00

by Jean Roth , jroth@nber.org , 6 Apr 2018