The phrase "historical norms" refers to the behaviors, practices, or standards that were commonly accepted or followed by people in the past. It represents the typical or expected way things were done in a particular time period. Full definition
First - time buyers are slowly emerging but make up just 30 percent of buyers, down from historical norms of around 40 percent. (realtormag.realtor.org)
Emerging markets stocks have seen declines in relative valuations over the last year, and are well below historical norms. (blackrockblog.com)
Historical norms for the most reliable measures are less than half of present levels. (hussmanfunds.com)