Basic education is the largest subsidy for Pennsylvania public schools. For the '09-10 and '10-11 budgets, state lawmakers used federal stimulus money to increase funding and fill holes. Gov. Tom Corbett took office in January 2011. "State basic ed" refers to the state subsidy plus state-funded formula enhancements that pass year-to-year. Figures represent dollar amounts in billions. The '13-14 and '14-15 figures are based on available or enacted budgets, while others are based on actual ones.