Work Experience (current or before entering school)?

[imran.k.ali]

I know this might be a stupid question but I just want to get it cleared up.

I graduated in 2006 and now this summer I worked 3 full years, currently in my 4th year.

For my b-school apps, should I enter that I have 3 yrs or 4yrs of work experience (since before starting school in fall 2010 I will complete 4 yrs total)?

Thanks for the help!