condition mean min max ZT0-3 0.1056321595 0.075215477 0.136048842 ZT4-7 0.21854348425 0.1414102255 0.295676743 ZT8-11 0.34901709275000004 0.228328254 0.4697059315 ZT12-15 1.6934510332500001 1.3261064180000002 2.0607956485 ZT16-19 4.18503147025 3.407741996 4.9623209445 ZT20-23 5.34583598975 4.9264966139999995 5.7651753655