Yeah..... um, so I picked min max ranges which would accomodate 50-90% of something. The human one is probably a bit narrow. It was a manic day of googling. Try

Yeah..... um, so I picked min max ranges which would accomodate 50-90% of something. The human one is probably a bit narrow. It was a manic day of googling. Trying to work out what one molecule of caffeine weighs nearly broke me.