condition mean min max ZT0-3 293.7 293.7 293.7 ZT4-7 200.7 200.7 200.7 ZT8-11 223.4 223.4 223.4 ZT12-15 319.8 319.8 319.8 ZT16-19 434.1 434.1 434.1 ZT20-23 368.65 368.65 368.65