Historical clue formulations

• Middling grade — 2025-10-15
• 2.3, on a certain scale — 2024-06-28
• Grade just above average — 2023-10-12
• Mediocre grade — 2021-03-03
• Mark that's just above average — 2019-01-16
• 79, say — 2014-06-21
• A little above average — 2012-01-14
• 79, say — 2011-08-05
• Slightly above average — 2008-11-09
• A little better than average — 2006-12-28
• Just above average — 2004-02-29
• Middling mark — 1999-08-21
• Better-than-middling grade — 1995-07-27
• Middling grade — 1995-03-18