Thanks fatmanfilms and Sbrinz.
I will know in the next couple of months. But it's nice to have a rough estimate as to how much I might be getting.
My wife is 2 years behind me, and has a similar contribution ratio.
I will post to let you know when I have the exact figure. I'm sure that it might come in handy for other people in a similar situation.
Vielen Dank.