According to 2016 Google trends, a web search on ENM drastically increased through the last few decades. Currently, many researchers study ENM, but how many people practice ENM is still unknown… mostly because of social stigma against ENM. Also, the research emphasizes more on hierarchical poly relationships than ENM as a whole. Australian research (2014) stated that 1/100 hetero couples followed ENM. Two American studies found that 4to 5/100 respondents followed the ENM lifestyle. A 2016 American research found 21/100 single respondents engaged in ENM at some point in their life. Many people follow the ENM lifestyle despite age, gender, race, education, income, nationality, political or spiritual beliefs.