condition mean min max ZT0-3 0.0 0.0 0.0 ZT4-7 0.0 0.0 0.0 ZT8-11 0.97619 0.97619 0.97619 ZT12-15 0.4746825 0.0 0.949365 ZT16-19 0.0 0.0 0.0 ZT20-23 0.0 0.0 0.0