  
<prompt> Percent of children age 12-23 months who received vaccinations | (polio, 1990, 95.3) (dpt, 1990, 94.8) (measles, 1990, 89.4) (all vaccinations, 1990, 87.9) (polio, 1997, 95.7) (dpt, 1997, 95.9) (measles, 1997, 89.9) (all vaccinations, 1997, 85.7) (polio, 2002, 97.6) (dpt, 2002, 98.2) (measles, 2002, 95.2) (all vaccinations, 2002, 93.7) (polio, 2007, 97.7) (dpt, 2007, 97.4) (measles, 2007, 94) (all vaccinations, 2007, 93.3) (polio, 2012, 98.4) (dpt, 2012, 98.4) (measles, 2012, 94.4) (all vaccinations, 2012, 94.1) <response> The percentage of children age 12-23 months who received vaccinations increased from 79% in 1990 to 90% in 2012.  