The bonds outstanding method of amortizing a discount on serial bonds

		amortizes an increasing amount of discount each period based on the present value of the bonds outstanding at the beginning of the period
		amortizes an equal amount of discount each period over the life of the entire bond issue
		amortizes a decreasing amount of discount each period based on the present value of the bonds outstanding at the beginning of the period
		amortizes a proportional share of the discount each period based on the face value of the bonds outstanding at the beginning of the period relative to the sum of the face values of the bonds outstanding at the beginning of each period over the life of the entire issue