Frequencies for first 10,000 rows of eimmrege variable in nhamcsed2010 dataset :

  Does your ED |
        have a |
  computerized |
    system for |
    electronic |
  reporting to |
  immunization |      Freq.     Percent        Cum.
---------------+-----------------------------------
         blank |     10,000      100.00      100.00
---------------+-----------------------------------
         Total |     10,000      100.00

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