Frequencies for first 10,000 rows of ca_disor variable in natlterr2008 dataset :

  Suspected |
Chromosonal |
   Disorder |
        RFP |
645=f_ca_ch |
      rom R |      Freq.     Percent        Cum.
------------+-----------------------------------
            |      6,061       60.61       60.61
          C |          1        0.01       60.62
          N |      3,937       39.37       99.99
          P |          1        0.01      100.00
------------+-----------------------------------
      Total |     10,000      100.00

by Jean Roth , jroth@nber.org , 3 May 2016