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1979-06-01 0.5076142131979700
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1979-11-01 0.5000000000000000
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1980-02-01 0.4830917874396270
1980-03-01 2.8846153846153700
1980-04-01 0.4672897196261690
1980-05-01 1.8604651162790700
1980-06-01 1.3698630136986300
1980-07-01 1.3513513513513500
1980-08-01 0.4444444444444450
1980-09-01 1.3274336283185700
1980-10-01 0.8733624454148600
1980-11-01 0.4329004329004210
1980-12-01 0.4310344827586330
1981-01-01 3.4334763948497900
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1981-12-01 0.7782101167315180
1982-01-01 3.8610038610038600
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1982-06-01 1.4285714285714100
1982-07-01 0.3521126760563580
1982-08-01 0.3508771929824560
1982-09-01 0.6993006993007000
1982-10-01 0.3472222222222030
1982-11-01 0.3460207612456750
1982-12-01 0.6896551724137940
1983-01-01 3.0821917808219400
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1983-09-01 0.6389776357827480
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1983-12-01 0.6349206349206360
1984-01-01 2.5236593059936900
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1984-07-01 0.2985074626865670
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1984-10-01 0.2958579881656810
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1985-01-01 2.6470588235294000
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1985-03-01 1.7241379310344800
1985-04-01 0.0000000000000000
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1985-06-01 0.5665722379603400
1985-07-01 0.2816901408450860
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1985-10-01 0.2793296089385480
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1985-12-01 0.2785515320334260
1986-01-01 1.6666666666666800
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1986-03-01 1.3698630136986300
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1986-06-01 0.8130081300813160
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1986-09-01 0.8042895442359260
1986-10-01 0.2659574468085260
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1986-12-01 0.5319148936170220
1987-01-01 2.3809523809523800
1987-02-01 0.2583979328165230
1987-03-01 2.0618556701031100
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1987-06-01 0.7556675062972300
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1987-12-01 0.7389162561576220
1988-01-01 1.9559902200489200
1988-02-01 0.2398081534772050
1988-03-01 2.8708133971291900
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1989-01-01 0.9070294784580510
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1989-06-01 1.0964912280701800
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1989-09-01 0.6493506493506500
1989-10-01 0.2150537634408600
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1990-01-01 1.2793176972281600
1990-02-01 0.2105263157894740
1990-03-01 2.1008403361344600
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1990-06-01 0.8247422680412380
1990-07-01 -0.2044989775051130
1990-08-01 0.2049180327868850
1990-09-01 1.0224948875255600
1990-10-01 0.4048582995951530
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1991-01-01 0.8048289738430480
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1997-01-01 1.2006861063464800
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