condition mean min max ZT0-3 587.8888333333333 571.181 597.6735 ZT4-7 544.457 544.457 544.457 ZT8-11 589.014 589.014 589.014 ZT12-15 679.8025 634.5095 725.0955 ZT16-19 809.763 809.763 809.763 ZT20-23 655.023 655.023 655.023