condition mean min max ZT0-3 16.867449999999998 16.867449999999998 16.867449999999998 ZT4-7 49.08095 49.08095 49.08095 ZT8-11 26.18795 26.18795 26.18795 ZT12-15 15.80275 15.80275 15.80275 ZT16-19 11.7067 11.7067 11.7067 ZT20-23 12.18565 12.18565 12.18565