condition mean min max ZT0-3 70.0013 66.87545 73.12715 ZT4-7 86.84625 86.84625 86.84625 ZT8-11 75.97919999999999 75.97919999999999 75.97919999999999 ZT12-15 0 0 0 ZT16-19 90.66305 90.66305 90.66305 ZT20-23 101.72290000000001 101.72290000000001 101.72290000000001