The Italian supporters showed big drops in testosterone (50 %) while the winners enjoyed a similar rise with some showing a rise of 100 %! (predatornutrition.com)
That database shows big drops in proficiency rates in many states as they adopted tests aligned to new academic standards. (utahpubliceducation.org)
So, it shouldn't be surprising that most of the market's big drops came when the P / E was below 20. (allfinancialmatters.com)