condition mean min max ZT0-3 0.0 0.0 0.0 ZT4-7 0.06748739625 0.0 0.1349747925 ZT8-11 0.024915045 0.0 0.04983009 ZT12-15 0.02545513975 0.0 0.0509102795 ZT16-19 0.0 0.0 0.0 ZT20-23 0.0 0.0 0.0