pre_text: 4. INVENTORIES The components of inventories, net, are as follows (in thousands):
table: March 30, 2019 March 31, 2018
table: Raw materials $118,608 $110,389
table: Work in process 272,469 221,137
table: Finished goods 120,716 140,766
table: Total inventories $511,793 $472,292
question: Analyse this data from a financial earnings document. What is the change in the company's raw materials on March 31, 2018 and 2019?