transportation. In October 2015, Baker filed legislation to increase the state cap on the number of new charter schools in the state by 12 per year, and later in the same month, testified in favor of the legislation before the state legislature. In January 2016, Baker announced $83.5 million in funding for vocational education in the state, as well as a $72.1 million increase in the state's Chapter 70 local education funding and a $42 million increase in unrestricted local aid for education for fiscal year 2017, and the following month, Baker proposed increasing the state's charter school reimbursement formula to school districts by $20.5 million. In March 2016, Baker opposed a proposed overhaul to the state's charter school system being debated in the Massachusetts Senate at the time, and the following month, the Massachusetts Senate rejected Baker's proposed charter school cap increase. In July 2016, Baker vetoed a pay increase for pre-kindergarten teachers. The following month, Massachusetts students ranked first in the nation on their average ACT scores. In November 2016, Baker campaigned on behalf of a ballot initiative to raise the state cap on new charter schools which failed to pass, and in the same month, Baker's administration expanded a STEM internship program allowing high school students to work at related companies in the state. In January 2017, Baker signed into law a bill requiring all Massachusetts schools to have automated external defibrillators on site, announced that the state had received a $2 million grant from the Council of Chief State School Officers and JPMorgan Chase to improve career education in the state, and proposed a $91 million increase (to a total of $4.7 billion) in Chapter 70 local education funding and a $40 million increase (to a total of $1.062 billion) in unrestricted local aid for education for fiscal year 2018. In February 2017, Baker's administration announced $4 million in capital grants to 49 Massachusetts public high schools to purchase science equipment, and in the same month, the Massachusetts Department of Elementary and Secondary Education released data showing that the four-year graduation rate in the state had increased to 87.5 percent, and that the dropout rates in Holyoke, Lawrence, and Springfield had all declined by more than 50 percent over the previous five years. In March 2017, Baker proposed a six percent pay increase for pre-kindergarten teachers. In May 2017, Baker and Boston Mayor Marty Walsh announced