condition mean min max ZT0-3 0.6875395000000001 0.0 1.1957835 ZT4-7 0.4240895 0.4240895 0.4240895 ZT8-11 0.0 0.0 0.0 ZT12-15 0.0 0.0 0.0 ZT16-19 0.0 0.0 0.0 ZT20-23 0.0 0.0 0.0