YMS online application help asap please!!!

Hi!

I'm having a problem with my online application for my tier 5 youth mobility visa in the section that asks me how many times I have left Canada in the last 10 years. I have travelled quite extensively in the last 10 years because I have siblings that live abroad (like a couple of trips a year) how much detail do I have to provide and how precise do the dates have to be? I began filling it out writtng for example: June 2004, USA, 2 weeks, holiday. The problem is I only made it about half way through before I used up all the space in the box. What do I do? I would really appreciate any anwers anyone can give since I need to submit this application asap!!!

Thank you!!