Fixed lease income under our commercial operating leases generally includes fixed minimum lease consideration which is accrued on a straight-line basis over the terms of the leases. Variable lease income includes consideration based on sales, as well as reimbursements for real estate taxes, maintenance, insurance and certain other operating expenses of the properties.

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Minimum fixed lease consideration (in thousands of dollars) under non-cancelable tenant operating leases for each of the next five years and thereafter, excluding variable lease consideration and rents from tenants for which collectability is deemed to be constrained, for the years ending October 31, as of April 30, 2021, is as follows:

Year Ending October 31,	Amount
2021*	$	17,006
2022		14,817
2023		12,479
2024		10,297
2025		8,723
Thereafter		27,043
Total	$	90,365

*Amount represents full fiscal year

The above amounts assume that all leases which expire are not renewed and, accordingly, neither month-to-month nor rentals from replacement tenants are included.

Minimum future rentals do not include contingent rentals, which may be received under certain leases on the basis of percentage of reported tenants' sales volume. Rental income that is contingent on future events is not included in income until the contingency is resolved. Contingent rentals included in income for the six and three-month periods ended April 30, 2021 and 2020 were not material.

Residential tenants:

Lease terms for residential tenants are usually one to two years.