condition mean min max ZT0-3 103.116676 103.116676 103.116676 ZT4-7 101.8789585 101.8789585 101.8789585 ZT8-11 106.24614600000001 106.24614600000001 106.24614600000001 ZT12-15 95.0172365 95.0172365 95.0172365 ZT16-19 119.445529 119.445529 119.445529 ZT20-23 136.951734 136.951734 136.951734