CORRELATION
-0.18
Essentially no negative relationship
Searches for flu symptoms and pumpkin spice move largely independently over the period shown.
R²0.03
RANGE5 years
FITCubic
SEARCH INTEREST, MONTHLY (0–100)
Flu symptoms
Pumpkin spice
Dots are raw months · lines are the cubic fit
Google Trends interest indices (0–100), not absolute volumes. Correlation is not causation.