Frequencies for recallinitiationdatestr variable in enfrep20180404 dataset :

     Recall |
 Initiation |
       Date |      Freq.     Percent        Cum.
------------+-----------------------------------
 01/03/2018 |          1        0.66        0.66
 01/10/2018 |          1        0.66        1.32
 01/21/2018 |          1        0.66        1.97
 01/24/2018 |          1        0.66        2.63
 01/26/2018 |          3        1.97        4.61
 01/29/2018 |          5        3.29        7.89
 01/30/2018 |          1        0.66        8.55
 02/06/2018 |          2        1.32        9.87
 02/12/2018 |          2        1.32       11.18
 02/15/2018 |          1        0.66       11.84
 02/21/2018 |          1        0.66       12.50
 02/23/2018 |         13        8.55       21.05
 02/26/2018 |          1        0.66       21.71
 02/28/2018 |          1        0.66       22.37
 03/01/2018 |          2        1.32       23.68
 03/02/2018 |          3        1.97       25.66
 03/05/2018 |          4        2.63       28.29
 03/06/2018 |          2        1.32       29.61
 03/07/2018 |          3        1.97       31.58
 03/08/2018 |          2        1.32       32.89
 03/09/2018 |          2        1.32       34.21
 03/10/2018 |          4        2.63       36.84
 03/11/2018 |          1        0.66       37.50
 03/12/2018 |          1        0.66       38.16
 03/13/2018 |          1        0.66       38.82
 03/14/2018 |         15        9.87       48.68
 03/15/2018 |          1        0.66       49.34
 03/16/2018 |          3        1.97       51.32
 03/19/2018 |          1        0.66       51.97
 03/21/2018 |          1        0.66       52.63
 03/29/2018 |          3        1.97       54.61
 04/11/2017 |          1        0.66       55.26
 09/18/2017 |          1        0.66       55.92
 09/26/2017 |          1        0.66       56.58
 10/04/2017 |          2        1.32       57.89
 10/16/2017 |          2        1.32       59.21
 10/19/2017 |          3        1.97       61.18
 10/24/2017 |          1        0.66       61.84
 10/27/2017 |          1        0.66       62.50
 11/03/2017 |          1        0.66       63.16
 11/09/2017 |         14        9.21       72.37
 11/21/2017 |          1        0.66       73.03
 11/22/2017 |          1        0.66       73.68
 11/28/2017 |          1        0.66       74.34
 11/29/2017 |          3        1.97       76.32
 12/01/2017 |          2        1.32       77.63
 12/04/2017 |          4        2.63       80.26
 12/12/2017 |          1        0.66       80.92
 12/13/2017 |          1        0.66       81.58
 12/15/2017 |          3        1.97       83.55
 12/18/2017 |          9        5.92       89.47
 12/19/2017 |          4        2.63       92.11
 12/20/2017 |         11        7.24       99.34
 12/21/2017 |          1        0.66      100.00
------------+-----------------------------------
      Total |        152      100.00

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