condition mean min max ZT0-3 94.6 94.6 94.6 ZT4-7 58.4 58.4 58.4 ZT8-11 76.65 76.65 76.65 ZT12-15 100.7 100.7 100.7 ZT16-19 93.95 93.95 93.95 ZT20-23 103.19999999999999 103.19999999999999 103.19999999999999