When I was One,
I had just begun.

When I was Two,
I was nearly new.

When I was Three,
I was hardly me.

When I was Four,
I was not much more.

When I was Five,
I was just alive.

But now I am Six, I'm as clever as clever.
So I think I'll be six now for ever and ever.

-A.A.Milne, Now We Are Six

So, Tim, just 5 years to go!