Frequencies for first 10,000 rows of srvy_yr variable in familyxx2008 dataset :

    year of |
   national |
     health |
  interview |
     survey |      Freq.     Percent        Cum.
------------+-----------------------------------
       2008 |     10,000      100.00      100.00
------------+-----------------------------------
      Total |     10,000      100.00

by Jean Roth , jroth@nber.org , 10 May 2016