condition mean min max ZT0-3 3840.6499999999996 3840.6499999999996 3840.6499999999996 ZT4-7 3456.2 3456.2 3456.2 ZT8-11 3545.35 3545.35 3545.35 ZT12-15 3090.65 3090.65 3090.65 ZT16-19 3144.3 3144.3 3144.3 ZT20-23 3274.7 3274.7 3274.7