Frequencies for s5_c4_4 variable in hcris2552_10_2014 dataset :

       capd |
  exchanges |
    per day |
    s500000 |
00400 00400 |      Freq.     Percent        Cum.
------------+-----------------------------------
          1 |          7        0.11        0.11
          2 |          3        0.05        0.16
       2.75 |          1        0.02        0.18
          3 |          6        0.10        0.27
          4 |         19        0.30        0.58
          7 |          1        0.02        0.59
         64 |          1        0.02        0.61
          . |      6,210       99.39      100.00
------------+-----------------------------------
      Total |      6,248      100.00

by Jean Roth , jroth@nber.org , 23 Aug 2018