condition mean min max ZT0-3 1029.522 747.199 1311.845 ZT4-7 336.0375 336.0375 336.0375 ZT8-11 303.0105 303.0105 303.0105 ZT12-15 0 0 0 ZT16-19 322.78 322.78 322.78 ZT20-23 452.9525 452.9525 452.9525