condition mean min max ZT0-3 58.4794 58.4794 58.4794 ZT4-7 50.3106 50.3106 50.3106 ZT8-11 47.4101 47.4101 47.4101 ZT12-15 53.6137 53.6137 53.6137 ZT16-19 59.1674 59.1674 59.1674 ZT20-23 62.3369 62.3369 62.3369