Xbox Live Gold members yearly number?

You know how on Xbox Live, if you've had a Gold membership for a year, the number next to your gamertag on your profile will change depending on how many years you've been a member? Say that instead of buying a one year membership, I just have 4 3-month membership cards, will doing that also change the... show more You know how on Xbox Live, if you've had a Gold membership for a year, the number next to your gamertag on your profile will change depending on how many years you've been a member? Say that instead of buying a one year membership, I just have 4 3-month membership cards, will doing that also change the number next to my gamertag? Or do I have to buy a full year?
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