condition mean min max ZT0-3 79.5868 68.55125 98.26055 ZT4-7 94.9376 94.9376 94.9376 ZT8-11 89.957 89.957 89.957 ZT12-15 71.647475 71.3235 71.97145 ZT16-19 44.106899999999996 44.106899999999996 44.106899999999996 ZT20-23 45.594049999999996 45.594049999999996 45.594049999999996