condition mean min max ZT0-3 2436.65 2436.65 2436.65 ZT4-7 3035.1 3035.1 3035.1 ZT8-11 3036.45 3036.45 3036.45 ZT12-15 2820.05 2820.05 2820.05 ZT16-19 2812.45 2812.45 2812.45 ZT20-23 2895.4 2895.4 2895.4