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Decades

• 1960s (4,277)
• 1970s (5,909)
• 1980s (6,846)
• 1990s (2,186)
• 2000s (348)

States

• Alabama (134)
• Arizona (3)
• Arkansas (133)
• California (93)
• Connecticut (46)
• Delaware (22)
• Florida (8)
• Georgia (155)
• Idaho (2)
• Illinois (3,081)
• Indiana (1,252)
• Iowa (725)
• Kansas (164)
• Kentucky (698)
• Louisiana (57)
• Maine (632)
• Maryland (388)
• Massachusetts (48)
• Michigan (1,306)
• Minnesota (407)
• Mississippi (25)
• Missouri (437)
• Nebraska (127)
• New Hampshire (45)
• New Jersey (61)
• New Mexico (4)
• New York (179)
• North Carolina (578)
• Ohio (3,918)
• Oklahoma (15)
• Oregon (15)
• Pennsylvania (2,208)
• South Carolina (119)
• South Dakota (19)
• Tennessee (240)
• Texas (263)
• Vermont (83)
• Virginia (530)
• Washington (42)
• Lewis (1)
• Skagit (1)
• Thurston (1)
• Whatcom (39)
• West Virginia (304)
• Wisconsin (1,000)