condition mean min max ZT0-3 112.25415000000001 94.53145 123.1245 ZT4-7 130.84449999999998 130.84449999999998 130.84449999999998 ZT8-11 143.7045 143.7045 143.7045 ZT12-15 177.22275 172.8245 181.62099999999998 ZT16-19 165.0355 165.0355 165.0355 ZT20-23 158.9895 158.9895 158.9895