Historical clue formulations

• Low 90s — 2022-09-24
• B-plus beater — 2020-04-14
• Not perfect, but close to excellent — 2016-05-05
• Third grade? — 2016-02-20
• Nearly perfect — 2014-08-28
• Low 90s, say — 2012-03-16
• Pretty good grade — 2010-05-04
• It's less than perfect — 2007-05-25