All noncancelable leases have been categorized as capital or operating leases. The Company has leases for manufacturing plants, warehouses, machinery and equipment, and administrative offices with terms (including renewal options) ranging from one to 42 years. Under most leasing arrangements, the Company pays the property taxes, insurance, maintenance, and expenses related to the leased property. Total rental expense under operating leases was $12,476,000 in 2001, $9,296,000 in 2000, and $11,281,000 in 1999.

The present values of minimum future obligations shown in the following chart are calculated based on an interest rate of 11 percent determined to be applicable at the inception of the lease. Interest expense on the outstanding obligations under capital leases was $1,000 in 2001, $0 in 2000, and $13,000 in 1999.

Minimum future obligations on leases in effect at December 31, 2001, are:

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