How much is the LIFO reserve at fiscal year-end 2019?

Note 3: Restricted Cash We have cash on deposit with a bank as collateral for certain letters of credit. All of our letters of credit have maturity dates within the next 12 months, but we expect to renew some of these letters of credit when they mature. 4/27/2019 4/28/2018 (Amounts in thousands) Cash and cash equivalents Restricted cash Total cash, cash equivalents and restricted cash. $ 129,819 $ 134,515 1,968 2,356 $ 131,787 $ 136,871 Note 4: Inventories 4/27/2019 4/28/2018 (Amounts in thousands) Raw materials Work in process Finished goods. FIFO inventories Excess of FIFO over LIFO Total inventories 90,359 86,214 13,728 12,254 114,478 109,183 218,565 207,651 (21,666) (22,810) $ 196,899 $ 184,841 The increase in our FIFO inventories was primarily a result of our fiscal 2019 acquisitions. Note 5: Property, Plant and Equipment Estimated Useful Lives 3 - 40 years $ 3 - 15 years 3- 10 years (Amounts in thousands) Buildings and building fixtures Machinery and equipment Information systems and software Land.. Land improvements Transportation equipment. Furniture and fixtures Construction in progress 3 - 30 years 3 - 10 years 3 - 15 years 4/27/2019 223,505 $ 148,760 86,400 14,323 17,454 13,598 22,826 20,722 547,588 (347,065) 200,523 $ 4/28/2018 200,370 147,542 84,881 14,626 15,362 13,929 20,812 23,250 520,772 (339,890) 180,882 Accumulated depreciation .. Net property, plant and equipment $ Depreciation expense for the fiscal years ended April 27, 2019, April 28, 2018, and April 29, 2017, was $27.5 million, $27.5 million, and $25.4 million, respectively