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Decades

• 1960s (4,282)
• 1970s (5,918)
• 1980s (6,863)
• 1990s (2,187)
• 2000s (353)

States

• Alabama (134)
• Arizona (3)
• Arkansas (133)
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• Connecticut (46)
• Delaware (22)
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• Georgia (156)
• Idaho (2)
• Illinois (3,086)
• Indiana (1,253)
• Iowa (725)
• Kansas (164)
• Kentucky (699)
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• Michigan (1,309)
• Minnesota (407)
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• Nebraska (127)
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• Ohio (3,923)
• Oklahoma (15)
• Oregon (15)
• Pennsylvania (2,210)
• South Carolina (119)
• South Dakota (27)
• Tennessee (244)
• Texas (264)
• Vermont (83)
• Virginia (530)
• Washington (42)
• West Virginia (304)
• Wisconsin (1,002)