Historical clue formulations

• Tax on imports — 2025-11-26
• Duty — 2023-03-22
• Duty — 2021-05-16
• Duty — 2011-05-26
• Duty — 2008-10-02
• Tax paid at port — 2008-09-01
• Duty — 2007-05-26
• Duty — 2004-01-18
• Tax on imports — 1998-09-29
• Import duty — 1997-09-30