condition mean min max ZT0-3 93.55 93.55 93.55 ZT4-7 77.7 77.7 77.7 ZT8-11 94.0 94.0 94.0 ZT12-15 100.69999999999999 100.69999999999999 100.69999999999999 ZT16-19 144.3 144.3 144.3 ZT20-23 99.5 99.5 99.5