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14 0 1,000,000 2,000,000 3,000,000 4,000,000 5,000,000 6,000,000 7,000,000 8,000,000 85.2Q 85.4Q 86.2Q 86.4Q 87.2Q 87.4Q 88.2Q 88.4Q 89.2Q 89.4Q 90.2Q 90.4Q 91.2Q -0.8-0.6-0.4-0.2 0 0.2 0.4 0.6 0.8 1 1.2 0 2,000,000 4,000,000 6,000,000 8,000,000 10,000,000 12,000,000 Feb-88 Jun-88 Oct-88 Feb-89 Jun-89 Oct-89 Feb-90 Jun-90 Oct-90 Feb-91 Jun-91 Oct-91-0.4-0.3-0.2-0.1 0 0.1 0.2 0.3 0.4 0.5