condition mean min max ZT0-3 0.3235939145 0.320111503 0.32707632600000003 ZT4-7 1.08382581075 0.6532372344999999 1.514414387 ZT8-11 3.11757096025 2.643759053 3.5913828675 ZT12-15 6.01706078975 5.5479666195 6.48615496 ZT16-19 5.293304137750001 4.4590006795 6.127607596000001 ZT20-23 3.29994603975 2.4349144495000004 4.16497763