I haven’t been able to find any data on this. The only thing I can find is about the max decibels reached in 2013.
I feel that as the Seattle area has gotten richer and the ticket prices to the games have increased, it has drawn an older and quieter crowd. But I have no evidence to support this theory.
Can anybody help validate or disprove my thinking?
I think it’s gotten louder the last 2 years. After the Super Bowl, imo, the loudness kinda went away a bit, as true fans got priced out for people looking to go for “status” but the last couple years it’s seemed louder again