Growth of a kid... in graph form

I have been away from work for a mere three days and like a moth to a flame, I am finding unique ways to involve MS Excel in my life.

Monday was Christopher's one year weigh-in. With substantial data, it is now possible to start comparing the two kidlets and their growth curves. Thus, I present Christopher vs. Sophia:




Anyone who has studied statisitics, or has the ability to pose a question, might poke holes in my projected growth guesses.  I took an unscientific approach and simply extrapolated the rate Christopher had grown in the last two months and projected it 6 months forward.  

Who's to say how his growth will be over the next six months, though if standards has anything to say, he will remain ahead of the average.  He is currently well ahead of both Sophia and the national average.  According to the Swedish standards, he is two standard deviations ahead of average on height and one deviation over on weight.  

Sophia, is above average on height.