primary candidate bhayepani nabhayepani it's better to provide all data. 
I was the primary candidate and i showed the experience of Nepal too since that was within 5 yrs period of employment. As I already said no need of W2s (except the latest one), but provide employment within that of 5 years. If you were unemployed in any year within last 5 year, put unemployed for that time frame. Datewise, make sure u cover the last 5 years whether employed or umemployed. 

By the way, aren't u or ur company hiring the lawyer to file? If you are, the lawyer will ask whaever he needs. if no lawyer, then go with it.