condition mean min max ZT0-3 11.1431 11.1431 11.1431 ZT4-7 19.0287 19.0287 19.0287 ZT8-11 1.21462 1.21462 1.21462 ZT12-15 1.00231 1.00231 1.00231 ZT16-19 1.431677 1.431677 1.431677 ZT20-23 28.4649 28.4649 28.4649