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Decades

• 1960s (400)
• 1970s (885)
• 1980s (611)
• 1990s (143)
• 2000s (63)

States

• Alabama (1)
• Arkansas (4)
• Connecticut (1)
• Illinois (854)
• Indiana (229)
• Iowa (166)
• Kansas (55)
• Kentucky (4)
• Maine (8)
• Maryland (8)
• Massachusetts (1)
• Michigan (105)
• Minnesota (69)
• Mississippi (2)
• Missouri (32)
• Nebraska (56)
• Adams (8)
• Cass (6)
• Clay (2)
• Dakota (6)
• Gage (3)
• Hall (2)
• Hamilton (1)
• Jefferson (1)
• Kearney (4)
• Lancaster (22)
• Saunders (1)
• New Jersey (2)
• New York (3)
• North Carolina (9)
• Ohio (355)
• Oregon (1)
• Pennsylvania (16)
• South Carolina (3)
• South Dakota (14)
• Tennessee (4)
• Texas (16)
• Vermont (2)
• Virginia (4)
• West Virginia (1)
• Wisconsin (77)