IMM 008 question 10

[Panamai]

So on question 10, it asks for my status in my current country of residence. I'm here in Canada as a visitor. I first entered in December 2013, but have taken trips back to the US in order to extend my status. My last entry was January 12, 2015. I put Dec 30, 2013 as the beginning of my visitor status here, since that's when I moved in with my common-law partner. What date do I put for the end of my visitor status? Do I count 6 months out from my last entry? So confused.

 

[Panamai]

I'm a US citizen with no formal visitor record. I just came in with my Nexus card.