condition mean min max ZT0-3 87.6 87.6 87.6 ZT4-7 93.9 93.9 93.9 ZT8-11 128.64999999999998 128.64999999999998 128.64999999999998 ZT12-15 134.8 134.8 134.8 ZT16-19 82.3 82.3 82.3 ZT20-23 94.15 94.15 94.15