condition mean min max ZT0-3 967.5 967.5 967.5 ZT4-7 694.4 694.4 694.4 ZT8-11 578.45 578.45 578.45 ZT12-15 662.05 662.05 662.05 ZT16-19 650.1 650.1 650.1 ZT20-23 786.3499999999999 786.3499999999999 786.3499999999999