  
<prompt> Trends in Vaccination Coverage | Percentage of children age 12-23 months | (1997 YDHCHS, All basic vaccinations, 28) (2006 YMICS, All basic vaccinations, 38) (2013 YNHDS, All basic vaccinations, 43) (1997 YDHCHS, No vaccinations, 12) (2006 YMICS, No vaccinations, 12) (2013 YNHDS, No vaccinations, 16) <response> Sixteen percent of children age 12-23 months have received no vaccinations.  