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Decades

• 1960s (4,310)
• 1970s (5,951)
• 1980s (6,923)
• 1990s (2,202)
• 2000s (354)

States

• Alabama (137)
• Arizona (3)
• Arkansas (133)
• California (93)
• Connecticut (46)
• Delaware (22)
• Florida (8)
• Georgia (157)
• Idaho (2)
• Illinois (3,103)
• Indiana (1,255)
• Iowa (734)
• Kansas (165)
• Kentucky (699)
• Louisiana (58)
• Maine (635)
• Maryland (390)
• Allegany (3)
• Anne Arundel (2)
• Baltimore (19)
• Calvert (3)
• Caroline (1)
• Carroll (58)
• Cecil (78)
• Charles (1)
• Dorchester (5)
• Frederick (86)
• Garrett (5)
• Harford (8)
• Howard (10)
• Kent (7)
• Montgomery (29)
• Prince George's (2)
• Queen Anne's (4)
• Somerset (4)
• St. Mary's (2)
• Talbot (13)
• Washington (50)
• Massachusetts (48)
• Michigan (1,319)
• Minnesota (407)
• Mississippi (27)
• Missouri (441)
• Nebraska (127)
• New Hampshire (45)
• New Jersey (73)
• New Mexico (4)
• New York (186)
• North Carolina (581)
• Ohio (3,940)
• Oklahoma (15)
• Oregon (15)
• Pennsylvania (2,227)
• South Carolina (119)
• South Dakota (27)
• Tennessee (247)
• Texas (264)
• Vermont (84)
• Virginia (541)
• Washington (42)
• West Virginia (306)
• Wisconsin (1,015)