Frequencies for first 10,000 rows of anyimg variable in namcs2002 dataset :

Any imaging |      Freq.     Percent        Cum.
------------+-----------------------------------
         No |      8,903       89.03       89.03
        Yes |      1,097       10.97      100.00
------------+-----------------------------------
      Total |     10,000      100.00

by Jean Roth , jroth@nber.org , 28 Mar 2016