First of all I'd like to clarify this, I have learned from word of mouth that the number in the top right corner of a Gold member's gamercard is an indicator of how many years old their account is.
Here is a picture of what I'm talking about:
My question is, do you have to have been a Gold member for that entire time? Or does it just tell you how old your account is? For example, my original account that I made in 2007, I stopped using it around 2 years ago and it has been a silver membership ever since, if I recover the account again and put a Gold membership on it, will it have a '6' there? Or just however many years it has been a Gold account? If the latter, do those years have to be consecutive, or do they stack up?