condition mean min max ZT0-3 561.05 561.05 561.05 ZT4-7 463.0 463.0 463.0 ZT8-11 465.9 465.9 465.9 ZT12-15 580.1 580.1 580.1 ZT16-19 522.55 522.55 522.55 ZT20-23 504.95 504.95 504.95