condition mean min max ZT0-3 924.25 924.25 924.25 ZT4-7 741.9 741.9 741.9 ZT8-11 697.9 697.9 697.9 ZT12-15 684.0 684.0 684.0 ZT16-19 953.0 953.0 953.0 ZT20-23 876.7 876.7 876.7