Frequencies for first 10,000 rows of ca_disor variable in natl2014 dataset :

  Suspected |
Chromosomal |
 Disorder C |
  Confirmed |      Freq.     Percent        Cum.
------------+-----------------------------------
          C |          1        0.01        0.01
          N |      9,990       99.90       99.91
          P |          9        0.09      100.00
------------+-----------------------------------
      Total |     10,000      100.00

by Jean Roth , jroth@nber.org , 15 Jun 2016