condition mean min max ZT0-3 2392.0 2392.0 2392.0 ZT4-7 2292.2 2292.2 2292.2 ZT8-11 1979.55 1979.55 1979.55 ZT12-15 2447.5 2447.5 2447.5 ZT16-19 2690.7 2690.7 2690.7 ZT20-23 2860.3500000000004 2860.3500000000004 2860.3500000000004