I’m looking for some information on the average life span of a consumer email address. Reports from Fresh address’ ECOA program show that the average email list churns about 30% a year.

My reports tend to agree with this too (~2-4% a month), but this still doesn’t answer the question “How long does the average consumer use the same email address for before switching and moving to a new account?” 1 yr, 2, yrs, 5?

Anyone have insight into this?