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Decades

• 1960s (400)
• 1970s (887)
• 1980s (612)
• 1990s (144)
• 2000s (63)

States

• Alabama (1)
• Arkansas (4)
• Connecticut (1)
• Illinois (856)
• Indiana (230)
• Iowa (166)
• Benton (2)
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• Buchanan (3)
• Butler (4)
• Calhoun (11)
• Cass (2)
• Cerro Gordo (3)
• Chickasaw (1)
• Clayton (1)
• Dallas (2)
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• Delaware (3)
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• Fayette (4)
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• Grundy (3)
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• Lee (1)
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• Story (4)
• Tama (1)
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• Webster (4)
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• Woodbury (17)
• Wright (2)
• Kansas (55)
• Kentucky (4)
• Maine (8)
• Maryland (8)
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• Michigan (105)
• Minnesota (69)
• Mississippi (2)
• Missouri (32)
• Nebraska (56)
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• Ohio (355)
• Oregon (1)
• Pennsylvania (16)
• South Carolina (3)
• South Dakota (14)
• Tennessee (4)
• Texas (16)
• Vermont (2)
• Virginia (4)
• West Virginia (1)
• Wisconsin (78)