condition mean min max ZT0-3 904.05 904.05 904.05 ZT4-7 889.3 889.3 889.3 ZT8-11 703.8 703.8 703.8 ZT12-15 814.75 814.75 814.75 ZT16-19 955.05 955.05 955.05 ZT20-23 937.8 937.8 937.8