I haven't done this in a while, I used to do it at least once a year, but have somehow not gotten around to doing it for a couple of years. I just had to do it this year, as my youngest son has just overtaken his older brother in height! There is a 4 year age gap between the two of them. Next year I'll be doing another Stats layout, and I'm sure the youngest will be very visibly taller than the oldest! They make me feel short, and I'm 1.74m tall!