condition mean min max ZT0-3 527.95 527.95 527.95 ZT4-7 426.0 426.0 426.0 ZT8-11 409.85 409.85 409.85 ZT12-15 463.2 463.2 463.2 ZT16-19 531.8 531.8 531.8 ZT20-23 536.9 536.9 536.9