condition mean min max ZT0-3 539.4 539.4 539.4 ZT4-7 579.7 579.7 579.7 ZT8-11 596.25 596.25 596.25 ZT12-15 513.5 513.5 513.5 ZT16-19 436.45 436.45 436.45 ZT20-23 462.54999999999995 462.54999999999995 462.54999999999995