Frequencies for recallinitiationdatestr variable in enfrep20170517 dataset :

     Recall |
 Initiation |
       Date |      Freq.     Percent        Cum.
------------+-----------------------------------
 01/14/2017 |          1        1.30        1.30
 01/19/2017 |          1        1.30        2.60
 02/06/2017 |          1        1.30        3.90
 02/11/2017 |          1        1.30        5.19
 02/21/2017 |          1        1.30        6.49
 02/22/2017 |          1        1.30        7.79
 03/10/2017 |          1        1.30        9.09
 03/13/2017 |          1        1.30       10.39
 03/20/2017 |          2        2.60       12.99
 03/21/2017 |          1        1.30       14.29
 03/22/2017 |          6        7.79       22.08
 03/24/2017 |          6        7.79       29.87
 03/27/2017 |         12       15.58       45.45
 03/28/2017 |          1        1.30       46.75
 03/29/2017 |          1        1.30       48.05
 03/30/2017 |          2        2.60       50.65
 03/31/2017 |          2        2.60       53.25
 04/01/2017 |          6        7.79       61.04
 04/03/2017 |          1        1.30       62.34
 04/10/2017 |          3        3.90       66.23
 04/11/2017 |          1        1.30       67.53
 04/12/2017 |          2        2.60       70.13
 04/13/2017 |          4        5.19       75.32
 04/20/2017 |          3        3.90       79.22
 04/21/2017 |          8       10.39       89.61
 04/23/2017 |          1        1.30       90.91
 04/24/2017 |          2        2.60       93.51
 04/28/2017 |          2        2.60       96.10
 06/09/2009 |          1        1.30       97.40
 09/01/2016 |          1        1.30       98.70
 12/09/2016 |          1        1.30      100.00
------------+-----------------------------------
      Total |         77      100.00

by Jean Roth , jroth@nber.org , 18 May 2017