condition mean min max ZT0-3 2619.0 2619.0 2619.0 ZT4-7 2303.8 2303.8 2303.8 ZT8-11 2442.4 2442.4 2442.4 ZT12-15 1923.3 1923.3 1923.3 ZT16-19 2134.65 2134.65 2134.65 ZT20-23 2560.0 2560.0 2560.0