condition mean min max ZT0-3 0.666792 0.666792 0.666792 ZT4-7 0.0828876 0.0828876 0.0828876 ZT8-11 0.0 0.0 0.0 ZT12-15 0.0 0.0 0.0 ZT16-19 0.04826175 0.04826175 0.04826175 ZT20-23 1.2319499999999999 1.2319499999999999 1.2319499999999999