Taxpayer Y paid local real property taxes of $4,500 and state income tax of $5,500 in 2018. Y claimed a total of $14,000 in itemized deductions on Y's 2018 federal income tax return. In 2019, Y received a $1,500 state income tax refund due to Y's overpayment of state income taxes in 2018. The standard deduction in 2018 was $12,000 How much of the state income tax refund will need to be included in Y's gross income in 2019?