I was actually wondering about this myself. I have relevant experiences, but some were in my early college years or after graduation... However, I wonder if it looks odd to have experiences from 2002 or 2006, for example (without filling in the gaps from 2003-2005 or 2007 to 2010 etc, due to non-relevant stuff in between). I was wondering if the residency selection committee wouldn't wonder where was all the stuff in between those years.... Or if they'd realize that we are only trying to put in relevant details.
I know in a normal CV for job applications, it looks bad to have gaps in time... so it's better to have some sort of continuity of work/volunteer experience, even if it's not relevant to the particular job. I just wonder if such discontinuity would be an issue here or not.