Frequencies for first 10,000 rows of hlt_ochbp variable in mcbsatc2013 dataset 

  Ever told |
hypertensio |
 n/high bld |
   pressure |      Freq.     Percent        Cum.
------------+-----------------------------------
         -8 |         10        0.10        0.10
         -7 |          1        0.01        0.11
          1 |      6,674       66.74       66.85
          2 |      3,315       33.15      100.00
------------+-----------------------------------
      Total |     10,000      100.00

by Jean Roth , jroth@nber.org , 24 May 2016