 De Blasio's initiative has seen an increase in Universal Pre-K enrollment in New York City through 2015, with over 70% of pre-K expansions happening within the ZIP codes of the city's poorest quartile.In 2017 de Blasio proposed an expansion of the program to "3-K", to include three-year-olds.Preschool for three-year-olds would start in poorer neighborhoods, with the goal of covering the entire city, if the state or federal governments provided funding.