condition mean min max ZT0-3 44.5892 44.5892 44.5892 ZT4-7 46.4949 46.4949 46.4949 ZT8-11 26.4039 26.4039 26.4039 ZT12-15 24.6631 24.6631 24.6631 ZT16-19 41.290800000000004 41.290800000000004 41.290800000000004 ZT20-23 40.9237 40.9237 40.9237