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

              Was |
couns/educ/therap |
     y ordered or |
        provided? |      Freq.     Percent        Cum.
------------------+-----------------------------------
               No |      5,345       53.45       53.45
              Yes |      4,426       44.26       97.71
Entire item blank |        229        2.29      100.00
------------------+-----------------------------------
            Total |     10,000      100.00

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