condition mean min max ZT0-3 0.13116773333333334 0.11834070000000001 0.139152 ZT4-7 0.21394649999999998 0.21394649999999998 0.21394649999999998 ZT8-11 0.118119 0.118119 0.118119 ZT12-15 0.72589975 0.696017 0.7557825 ZT16-19 0.5621510000000001 0.5621510000000001 0.5621510000000001 ZT20-23 0.324957 0.324957 0.324957