The following information is related to the pension plan of Oriole, Inc. for 2021. Actual return on plan assets Amortization of net gain Amortization of prior service cost due to increase in benefits Expected return on plan assets Interest on projected benefit obligation Service cost $310000 120000 210000 379000 635000 1250000 Pension expense for 2021 is $1905000. $1629000 $1836000 $1596000