1st Intro (1968-1969)
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2nd Intro (1969-1983)
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3rd Intro (1983-1984)
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4th Intro (1984-1988)
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5th Intro (1988-1991)
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6th Intro (1991-1995)
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7th Intro (1995-1999)
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8th Intro (1999-2002)
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9th Intro (2002-2005)
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10th Intro (2005-2008)
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11th Intro (2008-2019)
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12th Intro (2019-)
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