condition mean min max ZT0-3 369.55 369.55 369.55 ZT4-7 422.6 422.6 422.6 ZT8-11 1075.15 1075.15 1075.15 ZT12-15 979.65 979.65 979.65 ZT16-19 358.5 358.5 358.5 ZT20-23 433.75 433.75 433.75