Historical clue formulations

• It has its peaks and valleys — 2025-06-21
• Visual in an annual report — 2021-08-18
• Boardroom plot? — 2021-07-18
• Plot lines? — 2020-11-29
• Visual representation of data — 2020-06-15
• Boardroom easel display — 2019-12-17
• Result of some plotting — 2017-08-27
• Math class drawing — 2015-06-29
• It has axes — 2015-01-06
• Something with x and y axes — 2011-01-10
• The Wall Street Journal visual — 2006-01-29
• Show visually — 2003-05-23
• Wall Street Journal visual, maybe — 2001-01-29
• Boardroom easel display — 1997-03-27
• Place for peaks — 1996-08-15
• Plot mathematically — 1994-09-07