pre_text: The funded status of the plans was as follows: (in thousands)
table: Years Ended March 31,
table: 2019 2018
table: Fair value of plan assets $90,365 $84,718
table: Less: projected benefit obligations 143,662 128,915
table: Underfunded status $(53,297) $(44,197)
question: Analyse this data from a financial earnings document. What is the increase in the fair value of plan assets from 2018 to 2019?