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Consider the following data on the prices of zero coupon bonds issued by the Treasury of the Democratic Republic of Slezakia (DRS) that prevailed on the dates listed below. The prices are given per $100 in face value. By the way, DRS is an isolated country that restricts investment from outside; only residents of DRS can trade these bonds Date: 08/31/07 Date Matures 08/31/08 08/31/09 08/31/10 08/31/11 Price 92 90 85 78 Date: 08/31/08 Date Matures 08/31/09 08/31/10 08/31/11 Price 93.1 89 82 Date: 08/31/09 Date Matures 08/31/10 08/31/11 08/31/12 Price 90 85.7 80