pre_text: Note 12 – Income Taxes Income tax expense for the fiscal years ended December 27, 2019, December 28, 2018 and December 29, 2017 differed from amounts computed using the statutory federal income tax rate due to the following reasons:
table: December 27, 2019  December 28, 2018  December 29, 2017
table: Statutory U.S. Federal tax $6,805 $5,847 $6,443
table: Differences due to:
table: State and local taxes, net of federal benefit  2,078 1,906 1,112
table: Change in valuation allowance  95 523 289
table: Impact of the Tax Act  — — (3,573)
table: Stock compensation  (676) (197) 162
table: Other  (92) (637) (391)
table: Income tax expense $8,210 $7,442 $4,042
question: Analyse this data from a financial earnings document. What is the change in Statutory U.S. Federal tax between 2018 and 2019?