condition mean min max ZT0-3 714.5 714.5 714.5 ZT4-7 652.3 652.3 652.3 ZT8-11 652.6 652.6 652.6 ZT12-15 680.25 680.25 680.25 ZT16-19 735.3499999999999 735.3499999999999 735.3499999999999 ZT20-23 744.3499999999999 744.3499999999999 744.3499999999999