condition mean min max ZT0-3 70.76127500000001 68.86580000000001 72.65675 ZT4-7 48.94475 48.94475 48.94475 ZT8-11 64.77850000000001 64.77850000000001 64.77850000000001 ZT12-15 0 0 0 ZT16-19 94.90700000000001 94.90700000000001 94.90700000000001 ZT20-23 84.56715 84.56715 84.56715