condition mean min max ZT0-3 34.261250000000004 34.261250000000004 34.261250000000004 ZT4-7 24.7168 24.7168 24.7168 ZT8-11 26.5808 26.5808 26.5808 ZT12-15 26.68475 26.68475 26.68475 ZT16-19 42.83045 42.83045 42.83045 ZT20-23 36.6389 36.6389 36.6389