"In an Express Entry profile, should I only include the minimum work experience needed to qualify for one of the programs, or should I include more?
To qualify for the broadest range of programs, including the Federal Skilled Worker Program, you should include work experience for the last 10 years. We also need this information for an application for permanent residence, no matter which program you are applying under."
Should, not have to.
http://www.cic.gc.ca/english/helpcentre/questions-answers-by-topic.asp?top=29