I need to get that paper out stat

I woke up this morning and realized that 5 years will be the longest I've ever spent at one school, ever, and even at 4 years that's ties for being the longest at one school thus far, given that if I define the last day that I spent at the school as the Last Day the breakdown of my childhood is:

3-4
4-5
6-9*
9-10
10-10
11*
12-13*
14-17*
18-20*
21-now*

This is....strangely frightening. 

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*Note: I'm counting my age as of the Last Day, and since my birthday's in the summer, the asteriks marks all the schools where I entered in the beginning of the school year, like everyone else, as opposed to being dropped in the middle. I guess what they say about people settling down / getting more stable as they get older is true. For some variation of it.