condition mean min max ZT0-3 86.96192500000001 85.08080000000001 88.84305 ZT4-7 103.1 103.1 103.1 ZT8-11 75.34725 75.34725 75.34725 ZT12-15 0 0 0 ZT16-19 70.48675 70.48675 70.48675 ZT20-23 87.46835 87.46835 87.46835