Frequencies for first 10,000 rows of asth_con variable in namcs2012 dataset :

        Asthma control |      Freq.     Percent        Cum.
-----------------------+-----------------------------------
                 Blank |         64        0.64        0.64
        Not applicable |      9,363       93.63       94.27
       Well controlled |        187        1.87       96.14
   Not well controlled |         22        0.22       96.36
Very poorly controlled |          5        0.05       96.41
       Other - Specify |         14        0.14       96.55
         None recorded |        345        3.45      100.00
-----------------------+-----------------------------------
                 Total |     10,000      100.00

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