Frequencies for s2_1_c1_131 variable in hcris2552_10_2017 dataset :

certificati |
    on date |
    s200001 |
13100 00100 |      Freq.     Percent        Cum.
------------+-----------------------------------
            |      3,742       99.81       99.81
 02/08/2013 |          1        0.03       99.84
 04/01/2001 |          2        0.05       99.89
 04/13/2011 |          1        0.03       99.92
 06/07/2005 |          1        0.03       99.95
 08/09/2005 |          1        0.03       99.97
 12/15/2010 |          1        0.03      100.00
------------+-----------------------------------
      Total |      3,749      100.00

by Jean Roth , jroth@nber.org , 25 Oct 2018