pre_text: 9. PROPERTY, PLANT AND EQUIPMENT Property, plant and equipment consists of the following (in thousands): Depreciation and amortization expense related to property and equipment for fiscal years 2019, 2018 and 2017 was $29.7 million, $30.7 million and $27.3 million, respectively. Accumulated depreciation on capital lease assets for fiscal years 2019 and 2018 was $5.3 million and $3.2 million, respectively. See Note 17 - Impairments and Note 15 - Restructurings for information related to property and equipment impaired during fiscal year 2019.
table: September 27,  September 28, 
table: 2019 2018
table: Construction in process 24,848 49,661
table: Machinery and equipment 175,696 174,638
table: Leasehold improvements 12,962 14,984
table: Furniture and fixtures 3,716 2,306
table: Capital lease assets 46,496 19,380
table: Computer equipment and software 18,116 17,317
table:            Total property and equipment 281,834 278,286
table: Less accumulated depreciation and amortization (149,187) (128,363)
table: Property and equipment — net $132,647 $149,923
question: Analyse this data from a financial earnings document. What was the average value of Machinery and equipment for 2018 and 2019?