Frequencies for chronicanddisablingmentalhea variable in snp2012 dataset :

Chronic and |
  Disabling |
     Mental |
     Health |
 Conditions |      Freq.     Percent        Cum.
------------+-----------------------------------
            |      7,240       98.17       98.17
          * |        135        1.83      100.00
------------+-----------------------------------
      Total |      7,375      100.00

by Jean Roth , jroth@nber.org , 14 Apr 2016